watchgas UNI DISPOSABLE Disposable Single Gas Detector User Manual

UNI DISPOSABLE Disposable Single Gas Detector

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Specifications

• Product Name: UNI DISPOSABLE
• Type: Disposable single gas detector
• Gas Detection: H2S or CO
• Operation Life: 36 months
• Display: Large LCD with remaining time display
• Alarm Notification: Six bright red LEDs
• Material: Strong and durable, drop-resistant design

Product Usage Instructions

1. Product Overview

The WatchGas UNI Disposable is a single gas detector designed to
detect H2S or CO for up to 36 months. It features a large LCD for
easy readability in the field, with alarm notification through
bright red LEDs.

2. Normal Mode Operation

2.1 Turning the Unit On

To turn on the unit, press and hold the Right Key for 3 seconds
until the LCD displays and the green LED flashes. Once turned on,
the unit cannot be turned off, and the battery life countdown timer
begins.

2.2 Warm-up Sequence

After powering on, the unit goes through a warm-up and self-test
sequence displaying firmware version, High Alarm, and Low Alarm
limits. If a sensor is not installed or identified, the screen
flashes accordingly.

2.3 Remaining Time Display

Following the start-up sequence, the unit enters normal mode
displaying the remaining operating time in months.

3. Alarms

Different alarm functions include Daily alarm test, Normal alarm
function, Calibration fail alarm, Bump fail alarm, and Bump due
alarm (for service use only).

4. Configuration Mode

Configuration mode allows you to perform tasks like zero
calibration in fresh air, set high and low alarm levels, etc.

5. Maintenance

Maintenance tasks include replacing the sensor filter when
necessary.

FAQ

Q: Can the UNI Disposable detect gases other than H2S or

CO?

A: No, the UNI Disposable is specifically designed to detect
only H2S or CO.

Q: How often should I perform a bump test on the unit?

A: The bump test should be performed as per the manufacturer’s
recommendations or when indicated by the Bump due alarm.

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USER MANUAL
UNI DISPOSABLE
Disposable single gas detector
we watch gas where you can’t

CONTENTS

READ BEFORE OPERATING

3

DESCRIPTION

3

WARNING

3

PROPER PRODUCT DISPOSAL AT END OF LIFE

4

1. PRODUCT OVERVIEW

5

2. NORMAL MODE OPERATION

6

2.1 Turning the unit on

6

2.2 Warm-up sequence

6

2.3 Remaining time display

6

3. ALARMS

6

3.1 Daily alarm test (Flashing?)

6

3.2 Normal alarm function

6

3.3 Calibration fail alarm (for service use only)

6

3.4 Bump fail alarm (for service use only)

7

3.5 Bump due alarm (for service use only)

7

4. CONFIGURATION MODE

7

4.1 Entering and exiting configuration mode

7

4.2 Zero (fresh air) calibration

7

4.3 Set high and low alarm levels

8

5. MAINTENANCE

8

5.1 Replacing the sensor filter

8

6. SPECIFICATIONS

10

7. SENSOR SPECIFICATIONS

11

8. ALARM SIGNAL SUMMARY

11

9. TROUBLESHOOTING

12

10. LIMITED WARRANTY

13

READ BEFORE OPERATING
This manual must be carefully read by all individuals who have or will have the responsibility of using, maintaining or servicing this product. The product will perform as designed only if it is used, maintained and serviced in accordance with the manufacturer’s instructions.
DESCRIPTION
The WatchGas UNI is a disposable or maintenance-free version of the UNI single gas detector. It detects H2S or CO in a selection of models for an operation life of 36 months. The detector has a large LCD providing maximum readability in the field. The display shows the reamining operating time. Six bright red LEDs allow for quick alarm notification. Constructed of strong and durable material, the UNI Disposable is designed to be comfortable, yet drop- resistant.
WARNING
· Never operate the monitor when the cover is removed. · Remove the monitor cover and battery only in an area known to be non-hazardous. · Use only the WatchGas lithium battery part number W500-0001-000 [1.17.02.0002] (3.6V,-
2700mAH, AA size) or part No. ER14505 cell. · This instrument has not been tested in an explosive gas/air atmosphere having an oxygen
concentration greater than 21%. · Substitution of components will impair suitability for intrinsic safety. · Substitution of components will void warranty. · It is recommended to bump test with a known concentration gas to confirm the instru-
ment is functioning properly before use. · Before use, ensure that the colorless ESD layer on the display is not damaged or peeling.
(The blue protective film used for shipment may be removed.)
AVERTISSEMENT
· N’utilisez jamais le moniteur lorsque le couvercle est enlevé. · Retirer le couvercle du moniteur et la batterie uniquement dans une zone connue comme
non dangereuse. · Utilisez uniquement la batterie au lithium de WatchGas pièce No. W500-0001-000
[1.17.02.0002] (3.6V, 2700mAH, taille AA) ou Lté, pièce No. ER14505 Cell. · Cet instrument n’a pas été testé dans une atmosphère explosive gaz / air ayant une con-
centration en oxygène supérieure à 21%. · La substitution de composants compromettra l’aptitude à la sécurité intrinsèque. · La substitution des composants annulera la garantie. · Il est recommandé de tester avec un gaz de concentration connu pour confirmer que
l’instrument f onctionne correctement avant de l’utiliser. · Avant l’utilisation, assurez-vous que la couche ESD incolore de l’écran n’est pas endom-
magée ou épluchée. (Le film protecteur bleu peut être enlevé.)
3

UNI DISPOSABLE
Disposable single gas detector
PROPER PRODUCT DISPOSAL AT THE END OF LIFE
The Waste Electrical and Electronic Equipment (WEEE) directive (2002/96/EC) is intended to promote recycling of electronic equipment and their components at end of life . This symbol (crossed-out wheeled bin) indicates separate collection of waste electrical and electronic equipment in the EU countries. This product may contain one or more Nickel-metal hydride (NiMH), Lithium-ion, or Alkaline batteries. Specific battery information is given in this user guide. Batteries must be recycled or disposed of properly. At the end of its life, this product must undergo separate collection and recycling from general or household waste. Please use the return and collection system available in your country for the disposal of this product.
4

1. PRODUCT OVERVIEW

1 1
2
3 6

5

1

DETECTOR COMPONENTS
1. LED alarm window

2. Remaining operating time display

3. Left Key (Confirm/Number

increasing)

4. Right Key (Power On-Off/ Cursor

4

moving)

5. Alligator clip

6. Sensor Gas Inlet

7. Vibrator

7

DISPLAY SYMBOLS

Gas name, includes: CO and H2S

36

36

Remaining time unit: Months, Days, Hours
Question mark: Daily alarm test needed; Bump test due; Perform menu function
OK: Accept menu entry; Unit status indicator
Gas concentration unit (for alarm setting display) Remaining operating time (Months/ Days/Hours)
Low battery warning

NORMAL OPERATION

Normal operation is limited to the following functions · Displaying the remaining operating time (the unit cannot be turned off) · Displaying (and logging) the Alarm Level if this concentration of gas is exceeded · Entering Configuration Mode to perform a fresh air zero calibration · Replacing the sensor filter if used in especially highly dusty or moist environments Full bump test or calibration, and setting other functions can only be performed using a UNI Mono docking station or the Multi docking station by a qualified service technician.

5

UNI DISPOSABLE
Disposable single gas detector

2. NORMAL MODE OPERATION
2.1 TURNING THE UNIT ON

NOTE: Once the unit is turned on it cannot be turned off and the battery life countdown timer begins.

Press and hold the Right Key ( ) for 3 seconds, until the LCD displays, and the green LED flashes.

, the buzzer beeps,

2.2 WARM-UP SEQUENCE

After powering on, the unit enters a warm up and self-test sequence, showing the firmware ver-

sion

followed by the the High Alarm

and Low Alarm

limits. If a sensor

is not installed or cannot be identified by the instrument, the screen flashes between

and

.

2.3 REMAINING TIME DISPLAY
After the start-up sequence, the unit enters normal mode and displays the remaining operating
time in months 36 . When <3 months remain, the display switchs to remaining days, and when <1 day remains it switches to remaining hours. Once the unit is running, it cannot be turned off manually and it stays on until the battery loses poweror the unit life expires.

3. ALARMS
3.1 DAILY ALARM TEST (FLASHING ?)
Before each day’s use, the ? question mark will be flashing to remind the user to press the Left [OK] Key once to test the function of the audio, visual and vibration alarms.

WARNING
If any of the needed alarms are not functioning, do not use the instrument and return it for service.

3.2 NORMAL ALARM FUNCTION
If the gas concentration exceeds an alarm limit, the display shows the alarm value being

exceeded

and gives audio, visual and vibration alarms according to the table at the end of

this manual (see Alarm Signal Summary). Once the concentration is no longer in an alarm con-

dition, the unit reverts back to the time display, but logs the alarm event in memory. The alarm

condition must persist for more than a few seconds for it to be registered; shorter alarms may

not be logged.

3.3 CALIBRATION FAIL ALARM (FOR SERVICE USE ONLY)

If the instrument fails calibration, it will alternately display

and the remaining run time

36 , once per second. The user can perform a manual Zero Calibration (see below) on the instrument alone, but a full span calibration requires a Mono or Multi Docking station.

6

3.4 BUMP FAIL ALARM (FOR SERVICE USE ONLY)
If the instrument fails a Bump test using the Mono or Multi Docking station, it will alternately dis-

play

and the remaining run time 36 once per second.

3.5 BUMP DUE ALARM (FOR SERVICE USE ONLY)
If the Bump Due setting is enabled and the due date has passed, the question mark will flash twice per second while the display continues to show the remaining run time 36 .

4. CONFIGURATION MODE

In the configuration mode the user can do a zero (fresh air) calibration and set the high and low alarm thresholds. In general, use the Left Key to increase the number or confirm, use the Right Key to move the cursor or move to the next programming item. Detailed configuration settings can be performed using the WatchGas Suite software through the UNI Mono / Multi Docking Station or (see UNI docking station manual).

4.1 ENTERING AND EXITING CONFIGURATION MODE
Press and hold the Left Key and the Right Key simultaneously for 3 seconds. The unit prompts for

a password by displaying

and

, with the first digit flashing. The UNI preset password

is 0000. Use the Left [OK] Key to increase the number, and the Right [ ] Key to move the

cursor. Once all four digits are entered, the cursor will move to “OK”, causing it to flash. Press the

Left Key to accept and enter the Configuration Mode.

To Exit Configuration Mode, scroll through the menu using the Right [ shown, and press Left [OK].

] Key until EXIT? is

4.2 ZERO (FRESH AIR) CALIBRATION
Zero (Air) calibration is to set the base line for the sensor. It is done in fresh air or other source known to be free of detectable gas (For an O2 unit, “zeroing” sets the value to 20.9%, so air must

be used). When the LCD displays

, press the Left Key to begin the air calibration. The unit will

start a 15 second count-down, and then display the calibration result as either pass

or fail

. The user can abort the zero calibration during the 15 seconds count-down by pressing the

Right Key, after which

is displayed.

7

UNI DISPOSABLE
Disposable single gas detector
4.3 SET HIGH AND LOW ALARM LEVELS
After Air calibration is completed or skipped, the unit displays to set the High Alarm limit. · Press Left to enter the menu. The current setting value is
displayed, with the first digit flashing: · Use the Left Key to increase the current digit, cycling from 0 to 9: · Use the Right Key to move the cursor to the next digit: · After all digits are entered, use the Right Key to move to the “OK”
symbol, and press the Left Key to save the entry. The unit will display SAVE for a few seconds while storing the value but it is not necessary to press OK to initiate saving. · The display automatically moves to set the Low Alarm limit
Adjust the Low Alarm in the same way as for the High Alarm.
5. MAINTENANCE
NOTE: The WatchGas UNI Disposable is designed as a disposable instrument and does not need maintenance under normal circumstances. However, in highly dusty or wet environments, it may be necessary to replace the sensor filter as described below.
CAUTION
Maintenance should be performed only by a qualified person who has proper training and fully understands the contents of the manual.
5.1 REPLACING THE SENSOR FILTER
The filter may need replacement under special circumstances such as use high- dust or condensing environments. External filter clips are available to reduce the need to replace the internal filter. Sheets of 5 “peel-and-stick” internal filters are available for this purpose:
1. Turn off the WatchGas UNI Disposable and place it face down on a soft surface. 2. Use a T10 Torx screwdriver to loosen (counterclockwise) each of the four screws. 3. Remove the top cover after carefully unplugging the buzzer connector. 4. Peel a filter from the sheet and center it over the sensor. Gently press down. 5. Re-connect in the buzzer connector and re-install the top cover. 6. Re-install the screws in the back cover. Be careful to not overtighten the screws.
EXTERNAL FILTER CLIP
8

SENSOR FILTER SENSOR .
BATTERY
CAUTION
· Change battery only in area known to be non-hazardous. · Use only WatchGas battery, PN: 1.17.02.0002 or PN ER14505 cell manufactured
by EVE Energy Co., LTD.
ATTENTION
· Changez la batterie uniquement dans une zone connue pour être non dangereuse.
· Utilisez uniquement la batterie au lithium de WatchGas, pièce No. 1.17.02.0002 (3.6V, 2700 mAH, taille AA) ou celle deEVE Énergie Cie., Lté, pièce No. ER14505.
9

UNI DISPOSABLE
Disposable single gas detector

6. SPECIFICATIONS

Size Weight Temperature Humidity Display
Alarm types
Alarm signal
Calibration (Service Center)
Event log Response time (t90) IP Rating EMI/RFI Intrinsic Safety Certifications
Battery & Life
Warranty

3.46 x 2.44 x 1.3 in. (88 x 62 x 33mm) 4.4 oz (125 g) -4 to 122°F (-20 to 50°C)
5 to 95% relative humidity (non-condensing) Shows months remaining operating time or alarm condition (No concentration readout) High alarm & low alarm (adjustable) Over range alarm, battery low alarm, & others Audible: 95 dB @ 30 cm Visual: Bright red LED Vibration: Built-in vibrator 2 point calibration, zero and span, power on zero (user-selectable). The UNI detectors can also be bump tested and calibrated with the UNI Mono/Multi Docking station. Latest 50 alarm events (display on unit or download using WatchGas Suite** software) 20 seconds for most sensors. See TA-4 for details.
IP68
Compliant with EMC 2004/108/EC
UL: Class I, Div 1, Group A, B, C, D Class II, Div 1, Group E, F, G Class III, Div 1 T4, -20° C T +50° C
amb
ATEX: II 1G Ex ia IIC T4 Ga IECEX: Ex ia IIC T4 Ga CE: Conformité Européenne
AA size Lithium battery Up to 3 years if used within specifications 3 years for the UNI Disposable of 36-Months

**WatchGas Suite is the PC software used to show and set more configuration parameters of UNI Disposable instrument through the UNI Mono or Multi Docking station.

10

CONFIGURATION SET-UP USING WATCHGAS SUITE

7. SENSOR SPECIFICATIONS

Sensor
CO h2s

Range (ppm)
0-500
0-100

Resolution (ppm)
1
0.1

Span (ppm)
50
25

Low (ppm)
35
10

High (ppm)
200
20

Panel Ring

T90(s)
20 20

CAUTION
Use only WatchGas sensors.

8. ALARM SIGNAL SUMMARY

LCD Display

Reason/Alarm Signals
Low alarm: Buzzer 2 beeps per second LED 2 flashes per second 1 vibration per second “LOW” 2 flashes per second
High alarm: Buzzer 3 beeps per second LED 3 flashes per second 1 vibration per second “HIGH” 2 flashes per second
Over-range: Buzzer 3 beeps per second LED 3 flashes per second 1 vibration per second “OVER” and “500” 1 flash per second

11

UNI DISPOSABLE
Disposable single gas detector

36
36 36

Daily Alarm Check needed or Bump Due alarm: ? 2 flashes per second
Bump Fail alarm: Buzzer 1 beep per minute LED 1 flash per minute 1 vibration per minute “Bump” and “Remain Time” alternate display per second
Calibration Fail alarm: Buzzer 1 beep per minute LED 1 flash per minute 1 vibration per minute “CAL” and “Remain Time” display alternately once per second
Battery Low alarm: Battery Empty prompt
Buzzer 1 beep per minute LED 1 flash per minute 1 vibration per minute
Battery fail alarm: Buzzer 1 beep per second LED 1 flash per second “bAT LoW”1 flash per second
Sensor error: Buzzer 1 beep per second LED 1 flash per second “SEN Err”1 flash per second

9. TROUBLESHOOTING

Problem Cannot turn on unit Weak or no response
Buzzer, LED, or vibration alarm inoperative

Possible reason Depleted or defective battery Filter(s) plugged
Bad buzzer, LEDs, or vibration alarm. Blocked alarm port

Solution Depleted or defective battery Replace external filter clip or internal filter Call authorized service center
Clean or unblock alarm port

12

10. LIMITED WARRANTY
WATCHGAS warrants this product to be free of defects in workmanship and materials under normal use and service for two years from the date of purchase from the manufacturer or from the product’s authorized reseller.
The manufacturer is not liable (under this warranty) if its testing and examination disclose that the alleged defect in the product does not exist or was caused by the purchaser’s (or any third party’s) misuse, neglect, or improper installation, testing, or calibrations. Any unauthorized attempt to repair or modify the product, or any other cause of damage beyond the range of the intended use, including damage by fire, lightening, water damage or other hazard, voids liability of the manufacturer.
In the event that a product should fail to perform up to manufacturer specifications during the applicable warranty period, please contact the product’s authorized reseller or WATCHGAS service center at +31 (0)85 01 87 709 for repair/return information.

FOR MORE INFORMATION www.watchgas.com info@watchgas.com

WatchGas Klaverbaan 121 2908 KD Capelle aan den IJssel The Netherlands

WatchGas UNI Disposable | User Manual | EN | 12.09.24 | V1.3
All rights reserved. No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the publisher, except in the case of brief quotations embodied in critical reviews and certain other noncommercial uses permitted by copyright law. For permission requests, contact WatchGas B.V.
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