Thermometer GMH 3750

GMH 3750

High precision thermometer Pt100, with interchangeable sensors, logging function, and alarm

Fields of use

Control or reference measurements in liquids, soft media, air, and gases

Technical specifications

Sensores

Pt100, 4 wires (2 wires also possible)

Curva nominal

According to EN60751

Sensor connection

Mini-DIN, 4 poles

Resolution

0.01 °C or 0.1 °C, 0.01 °F or 0.1 °F

Rangos

-199.99 ... +199.99 °C or -200.0 ... +850.0 °C

-199.99 ... +199.99 °F or -328.0 ... +1562.0 °F

Precision device

(±1 digit)

Rango 0,01 °C/F: ±0,03 °C / 0,06 °F

(a temperatura nominal)

Rango 0,1 °C/F: ±0,1 °C / ±0,2 °F

Measurement

4-wire measurement with automatic thermal voltage error compensation, measurement current, approx. 0.3 mA

Temperature deviation

<=0.002K per 1K

Temperatura nominal

25 °C

Condiciones ambientales

Temperature: -25 ... +50 °C (-13 ... 122 °F)

Humedad relativa: 0 ... 95 % H.r (sin condensar)

Temperatura almacenamiento

-25 ... +70 °C (-13 ... 158 °F)

Carcasa

Dimensions: 142 x 71 x 26 mm (largo x ancho x profundo)

Shock-resistant ABS, membrane keyboard 

Front part: IP65, includes a support to position it upright

Peso

aprox. 155 g

Alarma MIN/MAX

Constant monitoring of the measurement value, setting of 3 alarms

Data logging:

Manual

99 values (recoverable by key or interface)

Cyclic

16,384 (recoverable via interface)

Set logging quota

1 segundo ... 1 hora

Salida

3.5 mm jack, 3 poles

selection of serial interface output or analog output

Analog output

0 ...1 V, free adjustment (resolution: 13 bit, accuracy: 0.05% at nominal temperature,

carga capacitiva <1nF)

Power supply

9 V battery, type IEC 6F22 (included in shipment)

additional input for network adapter (inner diameter of 1.9 mm) for 

External power supply of 10.5 - 12 V (alternating current)

Intensidad absorbida

With output disconnected: approx. 0.90 mA

With activated serial interface: approx. 1.15 mA

With activated analog output: approx. 1.25 mA

Pantalla

2-line LCD with 4 ½ digits (height: 12.4 mm or 7 mm)

Teclas

6 membrane keys for ON/OFF, menu navigation, MIN/MAX memory,

HOLD function, etc.

Memoria MIN/MAX

Records MIN/MAX values

HOLD function

Registra el valor actual

Auto-Off function

The equipment automatically disconnects if no key is pressed, or if there has been no communication through the interface. You can adjust the automatic disconnection time between 1 and 120 min, or disable this function.

EMV

The equipment complies with essential protection standards, as indicated in the legislation of Member States regarding personal protective equipment (2004/89/EC). EN61326 +A1 +A2 (Appendix B, class B), additional error: < 1 % full scale.