LEISTER G1200 Thermocouple Quick Response Thermometer User Manual

: June 13, 2024
: LEISTER

Table of Contents

LEISTER G1200 Thermocouple Quick Response Thermometer
Product Information
Product Usage Instructions
About this documentation
Safety
The device at a glance
Operation
Measurement Basics
Operation and maintenance
Error and system messages
Technical data
Service
References
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Download This Manual (PDF format)

LEISTER G1200 Thermocouple Quick Response Thermometer

Product Information

The G 1200 is a compact manual Thermocouple Quick Response Thermometer designed for use with exchangeable Type K sensors. It is produced by an undisclosed manufacturer.

Table of Contents

About this documentation
Safety
The device at a glance
Operation
Operation and maintenance
Error and system messages
Technical data
Disposal
Service

About this documentation

The documentation provides important information on the operation and usage of the G 1200 Thermocouple Quick ResponseThermometer. It is recommended to read and familiarize yourself with this document before using the device.

Foreword

It is essential to carefully read and understand this document before operating the G 1200 Thermocouple Quick Response Thermometer. Keep this document easily accessible near the device for quick reference.

Product Usage Instructions

Ensure you have read and understood the documentation provided.
Make sure the device is powered off before proceeding.
Connect the Type K sensor to the appropriate connection port on the device.
Power on the G 1200 Thermocouple Quick Response Thermometer.
To access the configuration menu, press the corresponding button (refer to the operating elements section in the documentation).
Adjust the measuring input according to your requirements using the configuration menu.
Follow the operating and maintenance notices provided in the documentation for proper usage and care of the device.
Monitor the battery indicator to ensure sufficient power for accurate measurements.
If the battery needs to be replaced, refer to the documentation for instructions on changing the battery.
In case of any error or system messages, consult the documentation for troubleshooting steps.
Refer to the technical data section for detailed specifications of the G 1200 Thermocouple Quick Response Thermometer.
Dispose of the device according to the disposal guidelines provided in the documentation.
For any service-related issues, refer to the manufacturer’s information in the documentation.
Calibration and adjustment services, as well as compatible accessories, are available (refer to the respective sections in the documentation).

About this documentation

Foreword
Read this document carefully and familiarise yourself with the operation of the device before you use it. Keep this document ready to hand and in the immediate vicinity of 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 begin-ning any work.
Legal notices
The liability and warranty of the manufacturer for damages and consequential damag-es 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 transmission, duplication, translation into other languages or excerpts from this operating manual require the consent of the manufacturer.
The manufacturer assumes no liability for print errors.
Further information
Software version of the device:
V1.0 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 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 to 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 docu-ment are observed. If these notices are disregarded, personal injury or death, as well as property damage can occur.

DANGER
Incorrect area of application!
In order to prevent erratic behaviour of the device, personal injury and property dam-age, the device must be used exclusively as described in the chapter Description in the operating manual.

The device is not suitable for use in explosion-prone areas!
The device must not be used for diagnostic or other medical purposes on pa-tients!
Not suitable for use with requirements on functional safety, e.g. SIL!
Do not use in safety / emergency stop devices!

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.
There is a risk of burns when measuring in high (and very low) temperatures. Use gloves if necessary.

CAUTION
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”.

NOTE
This device does not belong in children’s hands!

NOTE
The device housing is not designed for continuous contact with foods. For measurements in food in accordance with EC Regulation 1935 / 2004, suitable temperature probes must be used

Intended use
The device is thermometer for type K interchangeable probes.
It is designed, with the appropriate probe, for precise and instantaneous temperature
measurements in the following media:

Liquids, gases, soft plastic materials, bulk material
Food

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 instructions in this document must be understood, observed and followed. In order to avoid any risks arising from 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.

The device at a glance

Display elements

Display

Battery indicator: Evaluation of the battery status
Unit display: Display of units or min/max/hold
Main display: Measurement of the current temperature or value for min/max/hold
Auxiliary display: Measurement of the current temperature in min/max/hold mode with unit

Connections

Thermos couple plug Connection for temperature sensor

CAUTION
The device ensures extensive protection against splashing water and rain. However, immersion in water is not possible due to the socket opening.

Protect the connector opening/contacts from soiling and moisture!
Dry damp device and plug connectors as quickly as possible!

Operating elements

On / Off button
Press the brief: Switch on the device
- Activate/deactivate lighting
Long press: Switch off the device
- Reject changes in a menu
Up / Down button
Press briefly
- Display of the min/max value
- Change value of the selected parameter
Long press: Reset the min/max value of the current measure-ment
Both simultaneously: Rotate display, overhead display
Function button
Press briefly
- Freeze measurement (Hold)
- Call up the next parameter
Operating status
The device is in the measured value display
The device is in a menu

Operation

Opening the configuration menu

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

Parameter	Values	Meaning

|

POFF

| Shut-off time
|

OFF

| No automatic shut-off
| 0:15, 0:30, 1:00,

4:00, 12:00

| Automatic shut-off after a selected time in hours:minutes, during which no buttons have been pressed

L,TE

| Backlight
|

OFF

| Backlight deactivated
| 0:15, 0:30, 1:00,

2:00, 4:00

| Automatic shut-off of the backlight after a selected time in minutes:seconds, during which no buttons have been pressed
|

ON

| No automatic shut off of the backlight

UN,T

IN,T

| Factory settings
|

NO

| Use current configuration
|

YES

| Reset device to factory settings.

After confirming with the function-button , the display

shows: IN,T DONE

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 signalled with the display text T.OF or T.SL when switching on.

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

Parameter	Values	Meaning

|
T.OF| Zero point correction
| 0.0| No zero point correction
| -5.0 … 5.0| Zero point correction in °C. (at °F -9.0 .. 9.0)
T.SL| Gradient correction of the temperature
| 0.00| No gradient correction of the temperature
| -5.00 … 5.00| Gradient correction in %

Formula used by device:

Temperature = °C: Display = (measured value – T.OF) * (1 + T.SL / 100)
Temperature = °F: Display = (meas. value – 32 °F – T.OF) * (1 + T.SL / 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 t.oF and t.SL 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:
Start adjustment menu and enter the calculated value at t.SL
Exit 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 60584-2.

class	deviation	temperature range
1	±1.5 °C or ±0.4 % of measured value *	-40 … 1000 °C
2	±2.5 °C or ±0.75 % of measured value *	-40 … 1200 °C
3	±2.5 °C or ±1.5 % of measured value *	-200 … 40 °C

The system accuracy of the measuring chain (device + probe) is the sum of the accu-racy of the probe and the accuracy of the characteristic curve and cold junction of the device.

Possible measuring errors

Immersion depth
Liquid: 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 immer-sion depth is too shallow.
Gas: Immerse as far as possible into the gas to be measured so that the measur-ing sensor is subjected to a heavy flow.

Surface effects and poor heat transfer
Special measuring sensors are required for this purpose. Surface characteristics, de-sign 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 in-crease measurement accuracy in some cases

Cooling / evaporation

When measuring the air temperature, the probe should be dry, otherwise the tempera-ture 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 in accordance with the technical data. Do not throw or strike

NOTE
Plugs and sockets must be protected from soiling.

NOTE
If the not used for an extended period of 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 operation of the device. The battery is fully depleted.

Changing battery
DANGER
Danger of explosion!
Using damaged or unsuitable batteries can generate heat, which can cause the batter-ies 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.

NOTE
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.

Unscrews the Phillips screws (A)and remove the cover.
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.
The O-ring (C) must be undamaged, clean and positioned at the intended depth.
Fit the cover (D) on evenly. The O-ring must remain at the intended depth!
Tighten the Phillips screws (A).

Error and system messages

Display	Meaning	Possible causes	Remedy
—-	No suitable meas- uring probe con- nected

Measurement far outside of the measuring range

| Incorrect measuring probe

Measuring probe or device defect

| Connect a suitable meas- uring probe

Measurement leaves the permissible range

Send in for repair

Incorrect measuring probe connected

Measuring probe or device defect

| Stay within allowable measurement range

Check measuring probe

Send in for repair

ERR.2| Measuring range is undercut| Measurement too low

Incorrect measuring probe connected

Measuring probe or device defect

| Stay within allowable measurement range

Check measuring probe

Send in for repair

ERR.7| System error| Cold junction out- side operating range or defect| Stay within allowable operating temperature

Send in for repair

SYS ERR| System error| Error in the device| Switch device on/off Replace batteries Send in for repair

Technical data

Sensor connection	Connection socket for miniature flat plug
Supported sensor type	Thermocouple type K (NiCr-Ni)
Measuring range	-65.0 … +1200.0 °C (-85.0 … +2192 °F)

Accuracy

(at nominal temperature)

| Note: The system accuracy depends on the accuracy of the used temperature sensor!
| Device| ±0.1 % of m.v. ±1 °C
Cold junction| ±0.3 °C
Temperature drift| ±0.01 % of m.v. / K ±0.025 °C / K
Measuring cycle| approx. 3 measurements per second
Display| 3-line segment LCD, additional symbols, illuminated (white, luminous duration adjustable),

Display orientation 180° rotatable (overhead display)

IP65 / IP67 (rest of the housing)

Replacement indicator for depleted batteries: “BAT”

---|---|---
Auto-power-OFF function| The device switches off automatically if this is activated
Directives and stand- ards| The devices conform to the following Directives of the Coun- cil for the harmonisation of legal regulations of the Member States:

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

Applied harmonised standards:

EN 61326-1:2013 Emission limits: Class B

Immunity according to Table 1 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.

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 environmentallyfriendly disposal. Private end users in Germany have the possibility of dropping off the device at the municipal collection centre. Batteries must be removed beforehand! Please dispose of empty batteries at the collection points intended for this purpose

Service

Manufacturer
If you have any questions, please do not hesitate to contact us:

GHM Messtechnik GmbH
GHM GROUP – Greisinger
Hans-Sachs-Str. 26
93128 Regenstauf | GERMANY
Email: info@greisinger.de
www.greisinger.de
WEEE reg. no. DE 93889386

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 Greisinger.

Explanation
The ISO standard 9001 is applied for the iso-calibration certificates. These certificates area affordable alternative to the DAkkS calibration certificates andprovide information of the traceable reference, a list of individual values and documentation. The DAkkS calibration is based on DIN EN ISO/17025, the accreditation basis is recognised worldwide. These certificates offer high- quality calibration and consistently high quality. The DAkkS calibration includes any necessary adjustment with the purpose of minimising a deviation of the measuring device.

NOTE
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.

NOTE
Only the manufacturer can check the basic settings and make corrections if necessary

Accessories

Spare parts:
GB-AA-2 : art. no. 479249 Spare batteries AA (2 pcs.)

Suitable sensors: