Environment-resistant temperature measurement unit NR-XTH08T

NR-XTH08T - Environment-resistant temperature measurement unit

  • CE Marking
  • CSA

Specifications

Model

NR-XTH08T

Input method

Insulated single-end input, channels insulated from each other, input channels insulated from the case and other units (system)

Number of input channels

8*1

Input connector type

Miniature thermocouple connector (Universal type)

Measurement cycle

Maximum sampling cycle: 10 ms (100 Hz) to 1 h

A/D converting system

Delta-sigma method

A/D resolution

24 bits

A/D integration time (noise filter)

AUTO (Automatic configuration according to sampling cycle), 2.5 ms (400 Hz), 16.7 ms (60 Hz), 20 ms (50 Hz), 100 ms (10 Hz)

Input type

Thermocouple: K, J, E, T, R, S, B, N, C

Low pass filter

PASS / 200 Hz / 20 Hz

Averaging

Switchable between ON/OFF, Averaging rate: 2 to 128 (moving average)

Reference contact compensation

Switchable between internal and external

Reference contact compensation accuracy

±0.5°C ±0.9°F (23°C ±3°C 73.4°F ±5.4°F at input terminal temperature equilibrium)

Maximum input rating

±30 V*2

Maximum allowable input ground voltage

Dry locations: 30 VAC and 42.4 Vpeak, or 60 VDC
Wet locations: 16 VAC and 22.6 Vpeak, or 35 VDC

Withstand voltage

Between measurement input terminal and case/other units (system): 1000 VAC (50 Hz / 60 Hz) for 1 minute
Between measurement input terminals: 1000 VAC (50 Hz / 60 Hz) for 1 minute

Input impedance

10 MΩ or more

Input signal source resistance

2 kΩ or less

Thermocouple burnout detection

Switchable between ON/OFF, When ON: Approx. 10 μA current detection*3

Measurable range

K: −100 to +1372°C -148°F to +2501.6°F, −200 to −100°C -328°F to -148°F
J: −100 to +1200°C -148°F to +2192°F, −200 to −100°C -328°F to -148°F
E: −100 to +1000°C -148°F to +1832°F, −200 to −100°C -328°F to -148°F
T: −100 to +400°C -148°F to +752°F, −200 to −100°C -328°F to -148°F
N: −100 to +1300°C -148°F to +2372°F, −200 to −100°C -328°F to -148°F
C: 1500 to 2315°C 2732°F to 4199°F, 0 to 1500°C 32°F to 2732°F
R: 300 to 1768°C 572°F to 3214.4°F, 0 to 300°C 32°F to 572°F
S: 300 to 1768°C 572°F to 3214.4°F, 0 to 300°C 32°F to 572°F
B: 400 to 600°C 752°F to 1112°F, 600 to 1820°C 1112°F to 3308°F

Measurement accuracy

K: ±0.04% of rdg ±0.4°C ±0.7°F, ±0.43% of rdg ±0.1°C ±0.2°F
J: ±0.03% of rdg ±0.3°C ±0.5°F, ±0.30% of rdg ±0.1°C ±0.2°F
E: ±0.03% of rdg ±0.3°C ±0.5°F, ±0.27% of rdg ±0.1°C ±0.2°F
T: ±0.4°C ±0.7°F, ±0.34% of rdg ±0.1°C ±0.2°F
N: ±0.02% of rdg ±0.6°C ±2.1°F, ±0.63% of rdg ±0.1°C ±0.2°F
C: ±0.10% of rdg ±0.2°C ±0.4°F, ±0.04% of rdg ±0.8°C ±1.4°F
R: ±0.01% of rdg ±1.2°C ±2.2°F, ±2.0°C ±3.6°F
S: ±0.02% of rdg ±1.2°C ±2.2°F, ±2.0°C ±3.6°F
B: ±2.2°C ±4.0°F, ±1.6°C ±2.9°F
*4

Display resolution

K: 0.05°C 0.09°F
J: 0.05°C 0.09°F
E: 0.05°C 0.09°F
T: 0.01°C 0.02°F
N: 0.05°C 0.09°F
C: 0.05°C 0.09°F
R: 0.05°C 0.09°F
S: 0.05°C 0.09°F
B: 0.05°C 0.09°F

Buffer memory

16M data*5

Warm up time

30 minutes or more

Common mode noise reduction ratio

135 dB or more (up to 60 Hz DC) (typ.) *4

Remote connection

Dedicated environment-resistant remote unit input port × 1 (Remote IN), output port × 1 (Remote OUT)
Connection to NR-X100W master data collection unit or other NR-XR01 remote units using environment-resistant unit cable
Connectable to multiple environment-resistant measurement units*6

Synchronization accuracy between remote connection units

±1 μs*7

Power supply

Supplied from NR-X100W master unit

Power consumption

5.0 W max.

Surrounding air temperature

−40 to +85°C -40°F to +185°F*8

Operating ambient humidity

Max. 100% RH*9

Vibration resistance

100 m/s2 328.1 ft/s2; 5 to 2000 Hz; 2 hours in each of the X, Y, and Z directions (IEC 60068-2-6)*10
Equivalent to JIS D1601 Stage 45 (Class 1, Class 2, and Class 3; equivalent to Class B) automotive vibration standard

Shock resistance

1000 m/s2 3280.8 ft/s2; 3 times in each of the X, Y, and Z directions (18 times in total) (IEC 60068-2-27)

Enclosure rating

IP65/IP67 (IEC 60529)
Enclosure Type 4X (UL 50E, CSA C22.2 No. 94.2, NEMA 250)
Indoor/outdoor use

Material

Main unit case: Aluminum die-casting (coated) / PBT+PC / PC, Display: Reinforced glass,
Connectors: Brass (chromate processing), Connector protection cap: PBT+PC

Weight

Approx. 660 g 23.30 oz

*1 Max. expansion: 64 ch (with 8 units connected, using NR-X100W)
*2 Protection rating against temporary overvoltage. Do not apply voltage directly from an external source.
*3 The time until detection is confirmed varies depending on the acquisition setting and the input signal source resistance. Detection may be disabled depending on the low-pass filter and sampling cycle settings. For details, see P. 5–29.
*4 Does not include reference junction compensation accuracy. Specified with an A/D integration time of 20 ms (50 Hz) / 16.7 ms (60 Hz), the low-pass filter set to PASS, averaging set to 2 times, and after the warm-up time has passed and the temperature has stabilized (23°C ±3°C 73.4°F ±5.4°F).
*5 The buffer memory that can be used by the entire system is limited by the NR-X100W buffer memory.
*6 Environment-resistant unit cables can be extended by connecting an environment-resistant unit extension cable. The total length of cables used in the system should be no more than 100 m 32.8'. The distance between the NR-X100W (or NR-XR01) and environment-resistant measurement units or between environment-resistant remote measurement units should be no more than 60 m 196.9'.
*7 The sampling cycle and timing vary depending on the various measurement units used in the system.
*8 Install the product on the specified mounting sheet metal (OP-88613) for use with ambient temperatures of 80°C 176°F or higher.
*9 Use the product under the condition that the absolute humidity is 85°C 185°F with 90% RH or less. Avoid sudden temperature and humidity changes to prevent significant condensation and freezing.
*10 Testing with a 50 mm 1.97" p-p displacement limit used for 5 to 10 Hz.

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