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Spectral Response & Temperature Range:
Sensing Head Model: Spectral Response: Temperature Range:
GPR 8 to 14 microns -18 to 538°C (0 to 1000°F)
GPM 7.6 to 18 microns -18 to 538°C (0 to 1000°F)
System Accuracy (mA output) ±1% of measured value or ±1°C (2°F),
whichever is greater, @ 23°C ±5°C (73°F ±9°F)
System Repeatability ±0.5% of measured value or ±1°C (2°F) whichever is
greater
Response Time (95%):
GPR 700 mSec
GPM 1 Sec
Emissivity: 0.1 to 1.09 digitally adjustable increments of .01
Signal Processing: Peak/Valley Hold (up to 998 sec, 999=infinite hold
with external reset)
Variable averaging filter (up to 60 seconds)
T-ambient: fixed background ambient temperature
compensation
Outputs 4-digit, 7 segment LED display, °C/°F selectable
User configurable 4-20 mA current or thermocouple
output (J,K,E,N,R,S,T)
Two adjustable setpoints with deadbands controlling
+5 V alarm outputs or optional 3A mechanical relays
Power Supply 110/220 VAC, ±20%, 50-60 Hz
User configurable inputs for GPR, GPM, any 0-5 V
or 4-20 mA sensor, or thermocouple (J,K,E,N,R,S,T)
External Reset input to reset Peak/Valley hold
24 VDC/50 mA excitation voltage
Environmental Rating:
GP Monitor Front Panel IP 54 (IEC 529); NEMA-12
GPR Sensing Head IP 65 (IEC 529); NEMA-4*
GPM Sensing Head IP 65 (IEC 529); NEMA-4
* GPR rated with adapter and compression fitting
Ambient Temperature Range:
GP Monitor 0 to 50°C (32 to 120°F)
GPR Sensing Head: 0 to 65°C (32 to 150°F)
With optional water cooling 0 to 177°C (32 to 350°F)
GPM Sensing Head: 0 to 85°C (32 to 185°F)
With optional air cooling 0 to 200°C (32 to 392°F)
Storage Temperature -30 to 65°C (-22 to 150°F)
Relative Humidity 10 to 95%, non-condensing
GP Monitor Dimensions 1/8 DIN x 120 mm (1.75 x 3.63 x 4.75 in)
GP Monitor Weight 320 g (0.7 lbs)
Electrical Specifications
• Cooling housings for high ambient conditions
• Air purge fittings for sensing heads
• Adjustable mounting brackets and adapters
• External isolated solid state relays for alarm outputs (10 Amp AC)
• 3A mechanical output relays
Raytek GP Series
Accessories / Options
General Specifications
17 (.67)
28 (1.1)
M 12x1
Ø 14 (.55)
11 (.43)
preinstalled cable
standard cable length 1 m ( 3 ft.)
Ø 5 (0.2)
mm (in)
Dimensions
Sensing Head—Optical Specifications
GPR Sensing Head
GPM Sensing Head
GPM Sensing Head
Optical Chart
GPR Sensing Head Optical Charts
(NOTE: nominal spot size based on 90% energy)
Measurement Specifications (Monitor w/ Sensing Head)
Raytek, the Raytek logo, and Thermalert are registered trademarks
of Raytek Corporation.
©2001 Raytek Corporation, Printed in USA, 3/01 Rev. A
Specifications subject to change without notice. 3-1003
Worldwide Headquarters
Raytek Corporation
Santa Cruz, CA USA
Tel: 1 831 458 1110
800 227 8074 (U.S. and Canada only)
Fax: 1 831 458 1239
www.raytek.com
5710 Kenosha Street
Richmond, Illinois 60071 USA
Phone: +1 (815) 678-2211
FAX: +1 (815) 678-3961
Internet: www.watlow.com
e-mail: info@watlow.com
RIC-GP-0401
For Sales and Ordering Contact:
For Service and
W arranty Contact:
Your Authorized W atlow Distributor Is: