Bulletin No. GM8-C
Drawing No. LP0919
Released 04/14
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
MODELS GMTC, GMRTD, GMINI, GMINV GRAPHITE™ SERIES ANALOG INPUT MODULES
DEDICATED HIGH DENSITY INPUT MODULES FOR THE
GRAPHITE SERIES
MODELS AVAILABLE TO ACCEPT ±10 V, 0/4-20 mA,
THERMOCOUPLE AND RTD INPUTS
±10 V AND 0/4-20 mA INPUT VERSIONS FULLY SCALABLE
UNUSED INPUTS CAN BE DISABLED TO INCREASE OVERALL
READING RATE
IDEAL FOR DATA-ACQUISITION APPLICATIONS
CAN BE USED IN CONJUNCTION WITH ANY GRAPHITE
MODULES
U
R
US LISTED
L
IND. CONT
34AD
GENERAL DESCRIPTION
The Model GMTC, GMRTD, GMINI, and GMINV are 16-bit analog input
modules designed for use with the Graphite Series. These modules provide a
means of high-density signal measurement for data-acquisition applications.
The GMTC module accepts a wide range of thermocouple types, while the
GMRTD accepts various RTD inputs. The GMINI and GMINV accept 0/4-20
mA and ±10 V process signals, respectively.
The modules connect and communicate via proprietary USB connection to the
various Graphite host devices. The Graphite host devices, equipped with serial
ports as well as an Ethernet port(s), allows the system to share data with PCs,
PLCs, and SCADA systems. The maximum number of modules varies for each
Graphite host device, see specific models for details.
Once programmed, the module will continue to operate/ control independent of
the Graphite host device as long as power is applied. Remove power from the host
device before installing or replacing any modules.
DIMENSIONS In inches (mm)
CONFIGURATION
The Graphite Series is configured with Windows® compatible Crimson®
software. The software is an easy to use, graphical interface which provides a
means of configuration and commissioning of new systems, as well as routine
module re-calibration.
SAFETY SUMMARY
All safety related regulations, local codes and instructions that appear in the
manual or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
Do not use the module to directly command motors, valves, or other actuators
not equipped with safeguards. To do so can be potentially harmful to persons or
equipment in the event of a fault to the module. An independent and redundant
temperature limit indicator with alarm outputs is strongly recommended.
2.97 (76)
1.25 (32)
CAUTION: Risk of Danger.
Read complete instructions prior to
installation and operation of the unit.
CAUTION: Risk of electric shock.
4.65
(118)
1
GENERAL SPECIFICATIONS
1. POWER: Power will be supplied by the Graphite host device.
2. LEDs:
STS - Status LED shows module condition.
ALM - Alarm LED is lit during any internal alarm condition.
3. MEMORY: Non-volatile memory retains all programmable parameters.
4. ISOLATION LEVEL: 500 Vrms @ 50/60 Hz for 1 minute between the
Signal Inputs and the Host Power Supply Input.
5. COMMUNICATIONS: Provided by the Graphite host device
6. CERTIFICATIONS AND COMPLIANCES:
CE Approved
EN 61326-1 to Industrial Locations
IEC/EN 61010-1
RoHS Compliant
UL Listed: File #E302106
7. ENVIRONMENTAL CONDITIONS:
Operating Temperature Range: -40 to +75 °C; limited to host
Storage Temperature Range: -40 to +85 °C
Operating and Storage Humidity: 85% max relative humidity, non-
condensing, from -40 to +75 °C
Altitude: Up to 2000 meters
8. CONSTRUCTION: Case body is all metal construction. For indoor use only.
Installation Category II, Pollution Degree 2.
9. CONNECTIONS: Removable wire clamp screw terminal blocks
Wire Gage: 28-16 AWG terminal gage wire
Torque: 6.0 lbf-inch (96 oz-inch)
10. MOUNTING: Screws to host
11. WEIGHT: 8 oz (224 g)
GMTC8 SPECIFICATIONS
12. INPUTS:
Channels: 8 single-ended
Effective Resolution: Full 16-bit
Sample Time: 50 msec - 400 msec, depending on number of enabled inputs.
ENABLED
INPUTS
1 50 msec (20 Hz)
2 100 msec (10 Hz)
3 150 msec (6.7 Hz)
4 200 msec (5 Hz)
5 250 msec (4 Hz)
6 300 msec (3.3 Hz)
7 350 msec (2.9 Hz)
8 400 msec (2.5 Hz)
Common Mode Rejection: >110 dB, 50/60 Hz
Normal Mode Rejection: >90 dB, 50/60 Hz
Temperature Coefficient: 0.01%/°C
Step Response Time: One scan time (to within 99% of final value)
Types: T, E, J, K, R, S, B, N, C
Slope & Offset: Provides sensor error correction
Input Impedance: 20 M Ω
Lead Resistance Effect: 0.25 µV/Ω
Cold Junction Compensation: Less than ±1 °C typical (±1.5 °C max) over -40
to 75 °C ambient temperature
SCAN TIME
(READING RATE)
Resolution: 0.1°
TYPE
T
E
J
K
R
S
B
N
C
W5/W6
Millivolt
MEASUREMENT
RANGE
-200 to +400 °C
-328 to +752 °F
-200 to +730 °C
-328 to +1346 °F
-200 to +760 °C
-328 to +1400 °F
-200 to +1350 °C
-328 to +2462 °F
0 to +1768 °C
+32 to +3214 °F
0 to +1768 °C
+32 to +3214 °F
+149 to +1820 °C
+300 to +3308 °F
-200 to +1300 °C
-328 to +2372 °F
0 to +2315 °C
+32 to +4199 °F
-10.00 to +56.00 mV
No Standard
No Standard
No Standard
No Standard
ANSI
(+) Blue
(-) Red
(+) Violet
(-) Red
(+) White
(-) Red
(+) Yellow
(-) Red
(+) Orange
(-) Red
WIRE COLOR
BS 1843
(+) White
(-) Blue
(+) Brown
(-) Blue
(+) Yellow
(-) Blue
(+) Brown
(-) Blue
(+) White
(-) Blue
(+) White
(-) Blue
No StandardNo Standard
(+) Orange
(-) Blue
No Standard
No Standard
13. TEMPERATURE INDICATION ACCURACY: ± (0.3% of span, +1 °C).
Includes NIST conformity, cold junction effect, A/D conversion errors,
temperature coefficient and linearization conformity at 23 °C after 20 minute
warm up.
14. PROBE BREAK RESPONSE: Upscale drive, Input Fault Alarm bit set high,
ALM LED illuminates.
GMRTD6 SPECIFICATIONS
15. RTD INPUTS:
Channels: 6 single-ended
Effective Resolution: Full 16-bit
Sample Time: 67 msec - 400 msec, depending on enabled inputs.
ENABLED
INPUTS
1 67 msec (14.9 Hz)
2 133 msec (7.5 Hz)
3 200 msec (5 Hz)
4 267 msec (3.8 Hz)
5 333 msec (3 Hz)
6 400 msec (2.5 Hz)
Common Mode Rejection: >110 dB, 50/60 Hz
Normal Mode Rejection: >90 dB, 50/60 Hz
Temperature Coefficient: 0.01%/°C
Step Response Time: One scan time (to within 99% of final value)
Type: 2 or 3 wire
Excitation: 150 µA
SCAN TIME
(READING RATE)
Lead Resistance: 15 Ω Max
Resolution: 0.1°
Slope & Offset: Provides sensor error correction
TYPE INPUT TYPE RANGE
100 Ω platinum,
385 ± (0.2% of span)± (0.1% of span)
Alpha = .00385
100 Ω platinum,
392 ± (0.2% of span)± (0.1% of span)
Alpha = .003919
120 Ω nickel,
672
Alpha = .00672
Ohms Linear resistance
50 Ω copper,
428
Alpha = .00428
-200 to +600 °C
-328 to +1100 °F
-200 to +600 °C
-328 to +1100 °F
-80 to +215 °C
-112 to +419 °F
0 Ω to 300 Ω
-50 to +200 °C
-58 to +392 °F
ACCURACY
18 TO 28°C
ACCURACY
-40 TO 75°C
± (0.2% of span)± (0.1% of span)
± (0.2% of span)± (0.1% of span)
± (1.2% of span)± (0.6% of span)
16. TEMPERATURE INDICATION ACCURACY: Includes NIST conformity,
A/D conversion errors, temperature coefficient and linearization conformity at
23 °C after 20 minute warm up.
17. PROBE BREAK RESPONSE: If channel is enabled: upscale drive, Input
Fault Alarm bit set high, ALM LED illuminates.
2
GMINI8 SPECIFICATIONS
18. INPUTS:
Channels: 8 single-ended
Ranges: 0-20 mA or 4-20 mA
Effective Resolution: Full 16-bit
Programmable Scaling: ±30,000
Sample Time: 50 msec - 400 msec, depending on number of enabled inputs.
ENABLED
INPUTS
1 50 msec (20 Hz)
2 100 msec (10 Hz)
3 150 msec (6.7 Hz)
4 200 msec (5 Hz)
5 250 msec (4 Hz)
6 300 msec (3.3 Hz)
7 350 msec (2.9 Hz)
8 400 msec (2.5 Hz)
SCAN TIME
(READING RATE)
GMINV8 SPECIFICATIONS
21. INPUTS:
Channels: 8 single-ended
Ranges: 0-10 VDC or ±10 VDC
Effective Resolution: Full 16-bit
Programmable Scaling: ±30,000
Sample Time: 50 msec - 400 msec, depending on number of enabled inputs.
ENABLED
INPUTS
1 50 msec (20 Hz)
2 100 msec (10 Hz)
3 150 msec (6.7 Hz)
4 200 msec (5 Hz)
5 250 msec (4 Hz)
6 300 msec (3.3 Hz)
7 350 msec (2.9 Hz)
8 400 msec (2.5 Hz)
SCAN TIME
(READING RATE)
Common Mode Rejection: >110 dB, 50/60 Hz
Normal Mode Rejection: >90 dB, 50/60 Hz
Step Response Time: One scan time (to within 99% of final value)
Input Impedance: 10 Ω
Max. Continuous Overload: 100 mA
19. ACCURACY: ±0.1% of span
20. INPUT FAULT RESPONSE: Upscale Drive, Input Fault Alarm bit set
high, ALM LED illuminates below -3 mA, and above 23 mA for 0-20 mA
range; below +3 mA and above 23 mA for 4-20 mA signals.
Common Mode Rejection: >110 dB, 50/60 Hz
Normal Mode Rejection: >90 dB, 50/60 Hz
Step Response Time: One scan time (to within 99% of final value)
Input Impedance: 10 M Ω
Max. Continuous Overload: 50 V
22. ACCURACY: ±0.1% of span
23. INPUT FAULT RESPONSE: Upscale Drive, Input Fault Alarm bit set
high, ALM LED illuminates below -10.4 VDC and above +10.4 VDC.
24VDC
+
-
BLOCK DIAGRAM FOR
GMTC8, GMRTD6, GMINI8 & GMINV8
PORT 1
PROGRAMMING
A
POWER
SUPPLY
A
ISOLATED
PORT 3
ETHERNET
GRAPHITE HMI
PORT 2
COMMUNICATIONS
A
B
3
ISOLATED
INPUTS
C
POWER
SUPPLY
GMTC8, GMRTD6, GMINI8, GMINV8