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Graphtec GL840M 60Vp-p Temperature/Voltage Logger

Manufacturer: Graphtec
Model: GL840-M

Details

Datasheet

 

The following shows how a standard configuration is expanded to more than 40 channels

Configuration for additional channels

 

Number of channels

20 channels

40 channels

100 channels

200 channels

GL840 unit (GL840-M or GL840-WV)

1 set

1 set

1 set

1 set

Connection cable(B-567-05 or -20)

N/A

1 pc

1 pc

1 pc

Terminal base (B-566)

N/A

2 sets

5 sets

10 sets

Input terminal (B-564 or B-565 )

N/A

1 set

4 sets

9 sets

Offers longer cable for the input terminals

Input terminal blocks can be connected directly(in daisy chain), or using the B-565 cable(s). This allows the input terminals to be placed in separate locations according to the need of the application.

The input terminal unit and the GL840 main body can be extended by using an extended connections cable.

*If the signal is affected by noise, It may be required to use a slower sampling.

 

GL840 Analog input specifications

Item

Description

Model number

GL840-M, Input terminal B-564

GL840-WV, Input terminal B-565

Input method

All channels isolated balanced input *11, Scans channels for sampling

Type of input terminal

Screw terminal (M3 screw)

Measurement
range

Voltage

20, 50, 100, 200, 500 mV, 1, 2, 5, 10, 20, 50, 100 V, and 1-5V F.S. (Full Scale)

Thermocouple

Type: K, J, E, T, R, S, B, N, W (WRe5-26)
Range: 100, 500, 2000 ºC *12

RTD (Resistance
Temperature Detector)

Type: Pt100, JPt100 (JIS), Pt1000 (IEC751)
Range: 100, 500, 2000 ºC *12

Humidity

0 to 100 % RH - using the humidity sensor (option B-530)

Filter

Off, 2, 5, 10, 20, 40 (moving average in selected number)

Measurement accuracy *13

Voltage

± 0.1% of F.S. (Full Scale)

± (0.05% of F.S. + 10μV)

Temperature (Thermocouple) *14

 

Type

Measurement range
(TS: Temp Sense)

Measurement accuracy

Measurement accuracy

R

0 ≤ TS ≤ 100 ºC

± 5.2 ºC

± 4.5 ºC

100 < TS ≤ 300 ºC

± 3.0 ºC

± 3.0 ºC

300 < TS ≤ 1600 ºC

± (0.05% of rdg. + 2.0 ºC)

± 2.2 ºC

S

0 ≤ TS ≤ 100 ºC

± 5.2 ºC

± 4.5 ºC

100 < TS ≤ 300 ºC

± 3.0 ºC

± 3.0 ºC

300 < TS ≤ 1760 ºC

± (0.05% of rdg. + 2.0 ºC)

± 2.2 ºC

B

400 ≤ TS ≤ 600 ºC

± 3.5 ºC

± 3.5 ºC

600 < TS ≤ 1820 ºC

± (0.05% of rdg. + 2.0 ºC)

± 2.5 ºC

K

-200 ≤ TS ≤ -100 ºC

± (0.05% of rdg. + 2.0 ºC)

± 1.5 ºC

-100 < TS ≤ 1370 ºC

± (0.05% of rdg. + 1.0 ºC)

± 0.8 ºC

E

-200 ≤ TS ≤ -100 ºC

± (0.05% of rdg. + 2.0 ºC)

± 1.0 ºC

-100 < TS ≤ 800 ºC

± (0.05% of rdg. + 1.0 ºC)

± 0.8 ºC

T

-200 ≤ TS ≤ -100 ºC

± (0.1% of rdg. + 1.5 ºC)

± 1.5 ºC

-100 < TS ≤ 400 ºC

± (0.1% of rdg. + 0.5 ºC)

± 0.6 ºC

J

-200 ≤ TS ≤ -100 ºC

± 2.7 ºC

± 1.0 ºC

-100 < TS ≤ 100 ºC

± 1.7 ºC

± 0.8 ºC

100 < TS ≤ 1100 ºC

± (0.05% of rdg. + 1.0 ºC)

± 0.6 ºC

N

-200 ≤ TS < 0 ºC

± (0.1% of rdg. + 2.0 ºC)

± 2.2 ºC

0 ≤ TS ≤ 1300 ºC

± (0.1% of rdg. + 1.0 ºC)

± 1.0 ºC

W

0 ≤ TS ≤ 2000 ºC

± (0.1% of rdg. + 1.5 ºC)

± 1.8 ºC

R.J.C.

± 0.5 ºC

± 0.3 ºC

Temperature (RTD) *15

 

Type

Measurement range
(TS: Temp Sense)

Accuracy

Accuracy

Pt100

-200 ≤ TS ≤ 100 ºC

± 1.0 ºC

± 0.6 ºC

100 < TS ≤ 500 ºC

± 0.8 ºC

500 < TS ≤ 850 ºC

± 1.0 ºC

JPt100

-200 ≤ TS ≤ 100 ºC

± 0.8 ºC

± 0.6 ºC

100 < TS ≤ 500 ºC

± 0.8 ºC

Pt1000

-200 ≤ TS ≤ 100 ºC

± 0.8 ºC

± 0.6 ºC

100 < TS ≤ 500 ºC

± 0.8 ºC

A/D converter

Sigma-Delta type, 16 bits (effective resolution: 1/40000 of the measuring full range)

Maximum
input voltage

Between
(+) / (-) terminal

20 mV to 2 V range: 60 Vp-p,
5 V to 100 V range: 110 Vp-p

Channels ((-) / (-))

60 Vp-p

600 Vp-p

Channel / GND

60 Vp-p

300 Vp-p

Max. voltage
(withstand)

Between channels

350 Vp-p (1 minute)

600 Vp-p

Channel / GND

350 Vp-p (1 minute)

2300 Vrms AC (1 minute)

*11

The terminal "b" for using the RTD is connected each other across all channels.

*12

If the specifications of the temperature sensor is lesser or greater than the selected measurement range, GL840
can measure up to the specifications of the sensor.

*13

Subject to the following conditions:

·         Room temperature is 23 oC ± 5 oC.

·         When 30 minutes or more have elapsed after power has turned on.

·         Filter is set to 10.

·         Sampling rate is set to 1 sec, using 20-channel in GL840-M and 10-channel in GL840-WV.

·         GND terminal is connected to ground.

*14

Wire size of thermocouple used is 0.32mm diameter in the T type and 0.65mm diameter in other types.

*15

Supports 3-wire type sensor.

Options and Accessories

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Item

Model number

Description

Input terminal (Multi-inputs)

B-564

20ch input terminal, multi-input type

Input terminal (Withstand voltage

B-565

20ch input terminal, withstand-high-voltage type

Base unit for input terminal

B-566

Base unit for input terminal (B-564 or 566)

Connection cable
for extension terminal

B-567-05

Cable to connect GL840 and B-566, 50 cm long

B-567-20

Cable to connect GL840 and B-566, 2 m long

Wireless LAN unit

B-568

WLAN adapter, IEEE802.11 b / g / n

Battery pack

B-569

Rechargeable Lithium-ion battery (7.2 V, 2900mAh)

Bracket for DIN rale (GL840 main body)

B-570

Bracket for DIN rail (GL840 main body), Build-to-order

Bracket for DIN rail (extension terminal)

B-540

Bracket for DIN rail (Input terminal), Build-to-order

Input/Output cable for GL series

B-513

2 m long (no clip on end of cable)

DC drive cable

B-514

2 m long (no clip on end of cable)

Humidity sensor

B-530

With 3 m long signal cable (with power plug)

Shunt resistor

B-551-10

250 ohms (it converts the signal to the "1-5V" from the "4-20mA".)

AC power adapter

ACADP-20

Input: 100 to 240 V AC, Output: 24 V DC

Temp & Humidity sensor

GS-TH

Temperature and humidity measurement

Illuminance & UV sensor

GS-LXUV

Illuminance and UV intensity measurement, cable 20cm long

Carbon Dioxide (CO2) sensor

GS-CO2

CO2 measurement, cable 20cm long

Acceleration & Temp sensor

GS-3AT

Acceleration and temperature measurement, cable 20cm long

Thermistor input terminal

GS-4TSR

Temp measurement (using a Thermistor), cable 20cm long

Thermistor sensor (Normal type)

GS-103AT-4P

Temperature sensor (-40 to 105 ºC), 3m long, 4pcs/set

Thermistor sensor (Ultrathin type)

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