senseca ECO 120, ECO 121 Alarm Thermometer Instruction Manual

senseca ECO 120, ECO 121 Alarm Thermometer

Specifications

• Model: ECO 120 / ECO 121
• Type: Alarm Thermometer
• Product Code: B-H86.0.0X.DK2-4.1

Product Usage Instructions

• Safety
  • Ensure to follow safety guidelines provided in the manual to prevent accidents.
• The Device at a Glance
  • Learn about the display elements, connections, and operating elements of the device for better understanding.
• Operation
  • Follow the steps to open the configuration menu and adjust the measuring input as needed.
• Measurement Basics
  • Understand the sensor/device accuracy for precise measurements.
• Operation and Maintenance
  • Read and adhere to operating and maintenance notices. Monitor the battery life indicated on the device and replace it when necessary.

FAQs

• Q: How do I change the battery?
  • A: Refer to section 6.2.2 in the manual for detailed instructions on changing the battery.
• Q: What should I do in case of foreseeable misuse?
  • A: Follow the safety instructions provided in section 2.3 of the manual to avoid any potential issues due to misuse.

About this documentation

Foreword

• Read this document carefully and familiarize yourself with the operation of the device before you use it.
• Keep this document ready to hand and near the device so that it is available to the personnel/user for reference at all times in case of doubt.
• The user must have carefully read and understood the operating manual before beginning any work.

Legal notices

• The liability and warranty of the manufacturer for damages and consequential damages are voided with misuse, disregarding this document, disregarding safety notices, assignment of inadequately qualified technical personnel, and arbitrary modifications of the device.
• This document is entrusted to the recipient for personal use only. Any impermissible transfer, duplication, translation into other languages or excerpts from this operating manual are prohibited.
• The manufacturer assumes no liability for print errors.

Further information

• Software version of the device: V1.2 or later
• For the exact product name, refer to the type plate on the rear side of the device.

Note For information about the software version, press and hold the ON button to switch on the device for longer than 5 seconds. The series is shown in the main display and the software version of the device is shown in the secondary display.

Safety

Explanation of safety symbols

Danger! This symbol warns of imminent danger, which can result in death, severe bodily injury, or severe property damage in case of non-observance.
Caution! This symbol warns of potential dangers or harmful situations, which can cause damage to the device or the environment in case of non- observance.
Note This symbol indicates processes, which can have a direct influence on operation or can trigger an unforeseen reaction in case of non-observance.

Foreseeable misuse

• The fault-free function and operational safety of the device can only be guaranteed if applicable safety precautions and the device-specific safety instructions for this document are observed.
• If these notices are disregarded, personal injury or death, as well as property damage can oc-cur.

Danger! Incorrect area of application!
To prevent erratic behavior of the device, personal injury, and property damage, the device must be used exclusively as described under intended use.

• Do not use it in safety. Emergency Stop devices!
• The device is not suitable for use in explosion-prone areas!
• The device must not be used for diagnostic or other medical purposes on patients!
• Not suitable for use with requirements on functional safety, e.g. SIL!

Safety instructions

Caution! Risk of injury at the temperature sensor!

• Devices with insertion probes entail the risk of stab injuries due to the pointed probe design.
• Handle insertion probes with care!
• Fit a protective cap on the measuring probe if the probe is not in use!
• There is a risk of burns when measuring in high (and very low) temperatures.
• Use gloves if necessary.
• Empty batteries and batteries of inferior quality can leak more easily, which can destroy the device.
• Please also observe the instructions in the chapter “Operation and Maintenance”.
• Caution! There is an immediate danger to life if live parts come into contact with the temperature sensor!
• Therefore, do not conduct measurements on or in the direct vicinity of live parts or lines.
• Never plug the temperature sensor into sockets, etc.

Note This device does not belong in children’s hands! The sensor handle, connecting cable, and device housing are not designed for continuous contact with food. Designed for continuous contact with foods per EC Regulation 1935 / 2004:

• The temperature sensor from the measuring tip to approx. 1 cm before the end of the stainless steel tube.

Intended use

The device is a water-protected thermometer. It is designed for precise and instantaneous temperature measurements in the following media:

• Food
• Liquids
• Gases
• Soft plastic materials
• Bulk material

Qualified personnel

• For commissioning, operation, and maintenance, the relevant personnel must have adequate knowledge of the measuring process and the significance of the measurements. The instruc-tions in this document must be understood, observed, and followed.
• In order to avoid any risks arising from the interpretation of the measurements in the concrete application, the user must have additional expertise. The user is solely liable for damages/danger resulting from misinterpretation due to inadequate expertise.

Variants

The device at a glance

Display elements

Connections

BNC connection (ECO 120)| Connection for temperature sensor (Un/locking with rotating ring on the cable plug)
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Probe (ECO 121-…)| Permanently connected sensor

Caution! Ensuring water tightness!

• The device guarantees protection from spray water, rain, or accidental immersion in water. This protection for the plug connector is only guaranteed when plugged in.
• Moisture or contaminants on the contacts can result in incorrect measurement results.
• Protect contacts from soiling and moisture!
• Dry off damp plug connectors as quickly as possible!

Operating Elements

Operation

Opening the configuration menu

1. Press the Function key for 2 seconds to open the Configuration menu.
2. (ONF appears in the display. Release the Function key.

Adjustment of the measuring input

The temperature input can be adjusted with the zero point correction and the gradient correction. If an adjustment is made, you change the pre-adjusted factory settings. This is signaled with the display text or when switching on.

1. Switch the device off.
2. Hold the down button and press the On/Off button briefly to switch on the device and open the Adjustment menu.
3. The display shows the first parameter. Release the down button.

The formula used by the device:

• Temperature = °C: Display = (measured value – ) * (1 + / 100)
• Temperature = °F: Display = (meas. value – 32 °F – ) * (1 + / 100) + 32 °F

Adjustment example:

• Temperature unit= °C, the adjustment is carried out in 2 separate steps at 0 °C (e.g. ice water) and at a reference temperature (e.g. clinical thermometer with water bath 37 °C).

First, set the values of and in the adjustment menu to 0

Zero point:

• Set the temperature probe to 0 °C and let it adjust.
• Start the adjustment menu and enter the display value at 0 °C for t.oF
• After leaving the menu, the device should now display 0.0 °C.

Slope:

• Set the temperature sensor to the reference temperature and let it adjust.
• Calculate slope correction: 100
• Start the adjustment menu and enter the calculated value at t.SL
• Exit the menu, the device should now display the reference temperature.

Measurement Basics

Sensor/device accuracy
The device can be equipped with different interchangeable sensors. The temperature sensors are divided into the following classes according to EN 60751.

To achieve high exchange accuracy without the necessity of an additional correction, we recommend using class A or AA temperature sensors.

Possible measuring errors Immersion depth

• Liquids:
  • Immerse to a depth of at least 20 mm and then stir.
  • Otherwise, measuring errors can occur due to the heat transmission of the sensor tube if the immersion depth is too shallow.
• Gas:
  • Immerse as far as possible into the gas to be measured so that the measuring sensor is subjected to a heavy flow.

Surface effects and poor heat transfer

• Special measuring sensors are required for this purpose.
• Surface characteristics, design of the measuring sensor, heat transfer, and environmental temperature influence the measurement result.
• Note Thermally conductive paste between the measuring sensor and surface can also increase measurement accuracy in some cases.

Cooling/evaporation

• When measuring the air temperature, the probe should be dry, otherwise the temperature measured will be too low.

Response time

• An adequate wait time must be observed for the measuring process before reading the measured value.
• The response time t90 describes the time in which the displayed measured value reached 90% of the end value.

Operation and maintenance

Operating and maintenance notices

Note

• The device and temperature probe must be handled with care and used per the technical data. Do not throw or strike.
• Plugs and sockets must be protected from soiling.
• If the device is stored at a temperature above 50 °C or is not used for an extended time, the batteries must be removed. Leaks from the batteries are avoided as a result.

Battery

• Battery indicator
  • If the empty frame in the battery display blinks, the batteries are depleted and must be replaced. However, the device will still operate for a certain length of time.
  • If the BAT display text appears in the main display, the battery voltage is no longer adequate for the operation of the device. The battery is fully depleted.
• Changing battery
  • Danger! The danger of explosion!
  • Using damaged or unsuitable batteries can generate heat, which can cause the batteries to crack and possibly explode!
  • Only use high-quality and suitable alkaline batteries!
• Caution! Damage!
  • If the batteries have different charge levels, leaks and thus damage to the device can occur.
  • Only use high-quality and suitable alkaline batteries!
  • Do not use different types of batteries!
  • Remove depleted batteries immediately and dispose of them at a suitable collection point.

Note

• Unnecessary unscrewing endangers the protection against moisture and should therefore be avoided.
  • Read the following handling instructions before replacing batteries and follow them step by step.
  • If disregarded, the device could be damaged or the protection from moisture could be diminished.
  1. Unscrews the Phillips screws (A)and remove the cover.
  2. Carefully replace the two Mignon AA batteries (B). Ensure that the polarity is correct! It must be possible to insert the batteries in the correct position without using force.
  3. The O-ring (C) must be undamaged, clean, and positioned at the intended depth.
  4. Fit the cover (D) on evenly. The O-ring must remain at the intended depth!
  5. Tighten the Phillips screws (A).

Error and system messages

probe

•   Measurement outside of the measuring range

•   Probe or device defect

•   Measuring probe or device defect

| u Connect a suitable measuring probe Stay within allowable measurement range

u Send in for repair

u Send in for repair or connect a different probe

No display, unclear characters- acters or no response when buttons are pressed| Battery depleted System error Device is defective| •   Battery depleted

•   Error in the device

| u Replace battery

u Send in for repair

BAT| Battery depleted| •   Battery depleted| u Replace battery
ERR.1| Measuring range exceeded| •   Measurement too high

•   Incorrect measuring probe connected

•   Measuring probe or device defect

| u Stay within the allowable measurement range

u Check measuring probe

u Send in for repair

ERR.2| The measuring range is undercut| •   Measurement too low

•   Incorrect measuring probe connected

•   Measuring probe or device defect

| u Stay within the allowable measurement range

u Check measuring probe

u Send in for repair

SYS ERR| System error| •   Error in the device| u Switch device on/off

u Replace batteries

u Send in for repair

Disposal

• Separation by material and recycling of device components and packaging must take place at the time of disposal.
• The valid regional statutory regulations and directives applicable at the time must be observed.

Note

• The device must not be disposed of with household waste. Return it to us, freight prepaid. We will then arrange for the proper and environmentally friendly disposal.
• Private end users in Germany have the possibility of dropping off the device at the municipal collection center.
  • Batteries must be removed beforehand!
  • Please dispose of empty batteries at the collection points intended for this purpose.

Technical data

ECO 120

Measuring range| -200.0 .. +450.0 °C (-328.0 .. +842.0 °F). Observe the permissible range of application of the sensor that is used!
---|---
Accuracy| -20 .. +100 °C: ± 0.1 K ± 1 digit Other range:    ± 0.2 % of measured value ± 2 digits plus sensor deviation (e.g. Class A + sensor cable error)
Response time t90 water (0.4 m/s)| Depending on the connected sensor
Probe connection| BNC for Pt1000 temperature sensor (EN 60751)

ECO 121-…

-70 .. +250 °C:      ± 0.2 % of measured value ± 2 digits

Probe| ECO 121-3| Immersion sensor Ø 3 mm, Pt1000 permanent 2-wire connection, V4A, 1 m cable
ECO 121-I3| Durable insertion sensor Ø 3 mm, Pt1000 permanent 2-wire connection, V4A, 1 m cable
ECO 121-I1.5,| Extra-thin insertion sensor Ø 1.5 mm, Pt1000 permanent 2- wire connection, V4A, 1 m cable
Response time t90 water (0,4 m/s)| ECO 121-3| <3 s
ECO 121-I3| <3 s
ECO 121-I1.5,| <2 s

Common specifications for the above models:

duration adjustable)
Standard functions| Min/max/hold,

alarm (optical and acoustic)

Adjustment| Offset and gradient correction
Measuring cycle| approx. 2 measurements per second
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Housing| Break-proof ABS housing
| Protection rating| IP65 / IP67

(only with sensors identified as waterproof in the connected state for devices with BNC socket)

Dimensions LWH| 108 54 28 mm, without BNC socket or kink protection
Weight| ~ 130 g incl. batteries (ECO 120)

~ 150 g incl. batteries and probe (ECO 121-…)

Nominal temperature| 25 °C
Operating conditions| -20 to 50 °C; 0 to 95 %RH (temporarily condensing)
Storage temperature| -20 bis 70 °C
Current supply| 2 * AA batteries (mignon)
| Current requirement| approx. 0.4 mA, approx. 2 mA with backlight
Battery life| Service life > 5000 hours with alkaline batteries (without backlighting)
Battery indicator| 4-stage battery status indicator,

Replacement indicator for depleted batteries: “BAT”

Auto-power-OFF function| The device switches off automatically if this is activated
Directives and standards| The devices conform to the following Directives of the Council for the harmonization of legal regulations of the Member States:

2014/30/EU EMC Directive 2011/65/EU RoHS

Applied harmonized standards:

EN IEC 61326-1:2021 Emission limits: Class B

Immunity according to Table 2 Additional errors: < 1 % FS

EN IEC 63000:2018

The device is intended for mobile use and/or stationary operation in the scope of the specified operating conditions without further limitations.

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Service

Manufacturer

• If you have any questions, please do not hesitate to contact us.

Calibration and adjustment service

• The purpose of the calibration is to verify the precision of the measuring device by comparing it with a traceable reference.
• Both ISO calibration certificates and DAkkS calibration certificates are available from Senseca.

Explanation

• The ISO standard 9001 is applied for the iso-calibration certificates.
• These certificates area affordable alternatives to the DAkkS calibration certificates and provide information on the traceable reference, a list of individual values, and documen-tation.
• The DAkkS calibration is based on DIN EN ISO/17025, the accreditation basis is recognized worldwide. These certificates offer high-quality calibration and consistently high quality.
• The DAkkS calibration includes any necessary adjustment to minimize a deviation of the measuring device.
• The device is delivered with a test report. This confirms that the measuring device has been adjusted and tested, without making any statement about the accuracy of a temperature sensor.
• Only the manufacturer can check the basic settings and make corrections if necessary.

CONTACT INFORMATION

• senseca.com.
• Seneca Germany GmbH
• Hans-Sachs-Straße 26
• 93128 Regenstauf
• GERMANY
• INFO@SENSECA.COM.
• WEEE reg. no.: DE 93889386

References

• Mess- und Regeltechnik | Senseca Germany GmbH

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