GHM Greisinger GMH 3251 Precision Thermometer User Manual

Indledning

Welcome to the user manual for your GHM Greisinger GMH 3251 Precision Second Thermometer. This device is designed for highly accurate temperature measurements using various thermocouple types, featuring a 2-channel input and extensive data logging capabilities. Please read this manual thoroughly to ensure proper operation and maintenance of your device.

Sikkerhedsoplysninger

Adhering to these safety guidelines will help prevent damage to the device and ensure user safety:

• Læs alle instruktioner omhyggeligt, før du betjener enheden.
• Do not expose the device to extreme temperatures, high humidity, or direct sunlight for prolonged periods.
• Use only the specified power source: a 9V battery.
• Handle temperature probes with care, especially when measuring high temperatures, as they can become very hot.
• Opbevar enheden og dens tilbehør utilgængeligt for børn.
• Forsøg ikke at åbne eller reparere enheden selv. Kontakt kvalificeret servicepersonale.

Pakkens indhold

Kontroller venligst, at alle følgende varer er inkluderet i din pakke:

• 1 x GHM Greisinger GMH 3251 Precision Thermometer
• 2 x Temperature Probes
• 1 x 9V Battery (may be pre-installed or separate)
• 1 x Brugermanual (dette dokument)

Produkt overview

The GMH 3251 is a robust and precise thermometer designed for professional use. Below is an illustration of the device, highlighting its key components and controls.

Figur 1: Forside view of the GHM Greisinger GMH 3251 Precision Thermometer. The device features a bright yellow casing with a dark grey control panel. A large LCD display at the top shows two temperature readings, along with indicators for 'corr' (correction), 'alarm', 'tare', and 'logg' (logging). Below the display are six yellow buttons arranged in two rows of three. The top row includes the Power (On/Off) button, Max button, and Tare button. The bottom row includes the Set/Menu button, Min button, and Store button. The bottom section of the device displays the 'GREISINGER' logo and text indicating 'GMH 3200 Series Thermometer Thermoelement / Thermocouple'.

Controls and Display Features

• LCD-skærm: Shows primary and secondary temperature readings, unit of measurement (°C/°F), and various status indicators (e.g., 'corr', 'alarm', 'tare', 'logg').
• Tænd/sluk-knap (1): Used to switch the device ON or OFF.
• Max Button (2): Displays the maximum temperature recorded since the last reset.
• Tare Button (3): Activates the tare function, allowing for relative measurements or zeroing.
• Set/Menu Button (4): Accesses the device's settings menu for configuration of parameters like thermocouple type, alarm limits, and logging intervals.
• Min Button (5): Displays the minimum temperature recorded since the last reset.
• Store Button (6): Saves the current measurement data into the internal logger memory.

Opsætning

Installation af batteri

1. Locate the battery compartment cover on the rear of the GMH 3251.
2. Skub eller afklips dækslet for at åbne rummet.
3. Insert a fresh 9V battery, ensuring correct polarity (+ and - terminals).
4. Luk batteridækslet ordentligt, indtil det klikker på plads.

Tilslutning af sonder

The GMH 3251 is equipped with two 2-pin standard flat plug connections for thermocouple probes.

1. Identify the two probe input ports, typically located on the top or bottom edge of the device.
2. Carefully insert the thermocouple probes (J, K, N, S, T, B, E types are supported) into the corresponding ports. Ensure a firm and secure connection for accurate readings.

Betjeningsvejledning

Grundlæggende måling

1. Tryk på Magt button (1) to turn on the device.
2. The LCD display will illuminate and show the current temperature readings from the connected probes.
3. Allow a few seconds for the readings to stabilize before taking measurements.

Datalogning

The GMH 3251 supports both automatic and manual data logging. It can store up to 10,000 data sets automatically and 1,000 data sets manually.

• Automatic Logging: To configure and start automatic logging, press the Set/Menu button (4) and navigate to the logging settings. Here you can set the logging interval and activate the function. The 'logg' indicator will appear on the display.
• Manual Logging: To manually store a current reading, simply press the Butik button (6). The reading will be saved to the internal memory.

Alarm funktion

The device features an alarm function for individual channels (CH1, CH2), both channels (CH1&CH2), and differential temperature (DIF), accompanied by an audible buzzer ('Hupe').

1. Tryk på Set/Menu button (4) to enter the menu and navigate to the alarm settings.
2. Set your desired high and low alarm limits for the selected channel(s) or differential.
3. Activate the alarm function. The 'alarm' indicator on the display will light up when an alarm condition is met, and the buzzer will sound.

Max/Min Readings

Til view the highest and lowest temperatures recorded:

• Tryk på Maks button (2) to display the maximum temperature measured.
• Tryk på Min button (5) to display the minimum temperature measured.
• To reset these values, typically hold down the respective Max or Min button for a few seconds, or refer to the menu for a reset option.

Tare Funktion

The tare function allows you to set a reference point or zero the current reading.

1. Place the probe in the desired reference environment.
2. Tryk på Tara button (3). The display will adjust to show a relative reading from this new zero point.
3. Tryk på Tara button (3) again to deactivate the function and return to absolute readings.

Opretholdelse

Rensning

To ensure the longevity and accuracy of your device:

• Clean the exterior of the thermometer with a soft, slightly damp klæde.
• Do not use abrasive cleaners, solvents, or strong chemicals, as these can damage the casing eller display.
• Ensure no liquid enters the device's openings or probe connections.

Opbevaring

Når den ikke er i brug i længere perioder:

• Opbevar termometret et tørt, køligt sted, væk fra direkte sollys og ekstreme temperaturer.
• Remove the 9V battery to prevent potential leakage and damage to the device.

Fejlfinding

If you encounter issues with your GMH 3251, refer to the table below for common problems and their solutions:

Specifikationer

Detailed technical specifications for the GHM Greisinger GMH 3251 Precision Thermometer:

Garanti og support

For detailed warranty information, technical support, or service inquiries regarding your GHM Greisinger GMH 3251, please visit the official Greisinger website or contact your authorized local distributor. Please retain your purchase receipt as proof of purchase for warranty claims.