Technical Data

System Accuracy1

 

no signal attenuation

±(0.3% Tmeas* + 2°C)

up to 95% signal attenuation

±(1% Tmeas* + 2°C) for FR1A/FR1B

up to 95% signal attenuation

±(1.3% Tmeas* + 2°C) for FR1C

 

* Tmeas in °C

 

see also appendix 11.4 and 11.5, pages 57 ff.

Repeatability

±1°C (±2°F)

Temperature Resolution

±1°C (±2°F)

Response Time

10 msec (95%), selectable to 10 sec

Temperature Coefficient

±0.1% of reading at ambient temperature from 0 to 60°C

Emissivity (1‐color)

0.10 to 1.00, in 0.01 increments

Slope (2‐color)

0.850 to 1.150 in 0.001 increments

Max. Signal Reduction

95% at 600°C (1112°F), 50% at 500°C (932°F) for FR1A

 

95% at 875°C (1607°F), 50% at 700°C (1292°F) for FR1B

 

95% at 1300°C (2372°F), 50% at 1000°C (1832°F) for FR1C

Signal Processing

Peak Hold, averaging, hold time 0 – 299.9 sec, in 0.1 sec

 

increments, 300.0 sec holds with external trigger

3.2 General Specifications

Display

7‐segment LED display, individual LED’s indicate modes

Environmental Rating

NEMA‐4 (IEC 529, IP 65) rated with conduit adapter and

 

compression fitting (which prevents liquid from entering

 

through the connector)

Ambient Temperature

 

Head / Fiber Cable

0 to 200°C (32°F to 360°F)

Electronics Housing

0 to 60°C (32°F to 140°F), with cooling platform: 150°C (300°F)

Storage Temperature

 

Electronics Housing

‐20 to 70°C (‐4°F to 158°F)

Fiber Cable

rated to 200°C (360°F), stainless steel armour, Viton coated,

 

NEMA‐4 (IP65)

 

for a high temperature fiber cable, see section 7 Options, on

 

page 33.

Relative Humidity

10 to 95%, not condensing at 22°C to 43°C (72°F to 110°F)

Electromagnetic Interference

IEC 61326‐1

Mechanical Shock

 

Electronics Housing

MIL‐STD‐810D (IEC 68‐2‐27), 50 G, 11 msec duration, any axis

Vibrations

 

Electronics Housing

MIL‐STD‐810D (IEC 68‐2‐6), 3 G, 11 to 200 Hz any axis

1at ambient temperature 23°C ±5°C (73°F ±9°F)

Marathon Series FA/FR

5

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RayTek FA, FR operating instructions General Specifications