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| Infrared Temperature Sensor |
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| RD-600 series |
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Compact infrared temperature sensor using 2.3  m wavelength.
For measuring lustrous metal surfaces, secondary processed metals, ceramic materials, etc. |
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Can also measure through general and heat-resistant glass. |
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Compact sensing head with 14 mm diameter and a length of 28 mm - easy to use anywhere. |
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Can be used in ambient temperature up to 85  without needing to be cooled. |
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Possible to measure low temperatures of metal surfaces from 50 . |
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Objects with low emissivity can easily be measured at a short wavelenth of 2.3 m. |
- Model
- Dimensions
- Spec
- Terminal Arrangement |
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Model |
Spectral range |
Field-of-View |
Temperature Range |
| RD-622-LM |
2.3 m |
22:1 |
50 to 400 (*) |
| RD-675-HM |
2.3 m |
75:1 |
150 to 1000 (*) |
(*) Temperature of target object > Sensing head temperature + 25 |
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| Sensing Head (Scale: mm) |
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| Electronics Module (Scale: mm) |
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| Accessory Sold Separately: Mounting bracket (TFB) (Scale: mm) |
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| Accessory Sold Separately: Air purge collar (ATAL) (Scale: mm) |
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Accessory Sold Separately: Sighting tube - 40 mm (AST40APA)
(for RD-622-LM) (Scale: mm)) |
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Accessory Sold Separately: Sighting tube - 88 mm (AST88APA)
(for RD-675-HM) (Scale: mm) |
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| Accessory Sold Separately: Sighting tube adapter (included) (Scale: mm) |
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| Rating |
| Temperature range |
RD-622-LM: 50 to 400 (*)
RD-675-HM: 150 to 1000 (*)
(*) Temperature of target temperature > Sensing head temp. + 25 |
| Supply voltage |
8 to 36 V DC, Max. 100 mA |
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| General Structure |
| External dimensions |
Sensing head: 31 x  14 mm, M12 x 1
Electronics module: 89 x 70 x 30 mm (W x H x D) |
| Mounting |
Sensing head: Mounting bracket (sold separately)
Electronics module: Mounting by screws |
| Material |
Sensing head: Stainless steel
Electronics module: Die-cast zinc |
| Drip-proof/Dust-proof |
IP65 |
| Cable length |
3 m |
| Cable diameter |
2.8 mm |
| Safety standards |
CE mark certified |
| Display |
LCD display |
5 digits
Backlight:
When normal: Green
When Low limit alarm is ON: Blue
When High limit alarm is ON: Red
When both Low limit alarm output and High limit alarm output are ON: Purple |
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| Performance |
| System accuracy(*1) |
 (0.3 % of reading + 2 ) (*2)
however, thermocouple output accuracy: 2.5 or 1 % of reading, whichever is greater |
| Spectral range |
2.3 m |
| Field-of-view |
RD-622-LM: 22:1
RD-675-HM: 75:1 |
| Repeatability(*1) |
(0.1 % of reading + 1 ) (*2) |
| Temperature coefficient(*3) |
0.05 / or 0.05 %/, whichever is greater |
| Temperature resolution |
0.1 (*2) |
| Response time |
1 ms (90 % response) (*4) |
| Emissivity |
0.100 to 1.100 |
| Transmissivity |
0.100 to 1.100 |
| Signal processing |
Average, Peak Hold, Valley Hold |
(*1) Ambient temperature 235
(*2)  =1/Response time 1 sec
(*3) When ambient temperature (sensing head) is lower than 18 and higher than 28
(*4) Dynamic adaptation at low signal levels |
| Output |
| Analog output |
Selectable from 0 to 20 mA DC, 4 to 20 mA DC, 0 to 5 V DC, 0 to 10 V DC, thermocouple K, J
| Direct current |
0 to 20 mA DC, 4 to 20 mA DC
Load resistance: 500  or less |
| DC voltage |
0 to 5 V DC, 0 to 10 V DC
Load resistance: 100 k or more |
| Thermocouple |
K, J
Output impedance: 20 |
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| Alarm output |
High limit alarm
Open collector output
Capacity: 24 V DC, Max. 50 mA |
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| Attached Functions |
| Warm-up indication |
After the power is turned ON, the LCD display indicates [ .I.N.I.T ] for several seconds.
After that, the temperature of the target object will be indicated on the LCD display.
Backlight of the LCD display differs depending on the alarm status. |
| Backlight Color Switching |
If alarm is turned ON, backlight of the LCD display differs depending on the RD-600 status.
RD-600 Status |
Backlight |
| When normal |
Green |
| When Low limit alarm output is ON |
Blue |
| When High limit alarm output is ON |
Red (Open collector output ON) |
| When both Low limit alarm output and High limit alarm output are ON |
Purple
(High limit alarm output: Open collector output ON) |
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| Error message |
When errors occur, an error message will appear.
(Backlight: Green)
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| Others |
| Ambient temperature |
Sensing head: -20 to 85
Electronics module: 0 to 65 |
| Storage temperature |
Sensing head: -40 to 85
Electronics module: -40 to 85 |
| Ambient humidity |
10 to 95 %RH (non-condensing) |
| Vibration (sensing head) |
IEC 68-2-6: 3 G, 11-200 Hz, x,y,z directional |
| Shock (sensing head) |
IEC 68-2-27: 50 G, 11 ms, x,y,z directional |
| Weight |
Sensing head: 40 g
Electronics module: 420 g |
| Accessories included |
Instruction manual: 1 copy
Nut: 1 piece |
| Accessories sold separately |
Mounting bracket (TFB) (Scale: mm)
Air purge collar (ATAL)
Sighting tube - 40 mm (AST40APA) (for RD-622-LM)
Sighting tube - 88 mm (AST88APA) (for RD-675-HM)
Sighting tube adapter (included)
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(*) Connected prior to being shipped.
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