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Related Information
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Specifications for the Veriteq Spectrum 1700 line of precision thermocouple datalogger recorders.
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 General
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| Size |
2.8 x 2.1 x 0.7" (71x53x18mm);
60g (2.2 oz.) |
| Operating Range |
-40 to 85° C. (-40 to 185° F.) and
0 to 95% RH |
| Interfaces |
RS-232 serial port; half-duplex; 19,200 baud. Contact factory for optional USB products. |
| Mounting |
Magnetic strips; Velcro optional |
| PC Software |
Compatible with the following software packages: Veriteq Spectrum, Veriteq sGo (for Palm OS), Veriteq viewLinc (for on-going monitoring & alarming), Spectrum Excel Add-in, and Spectrum API (for custom applications). |
| Clock |
Accuracy: +/- 1 min./month at 0 to 50° C. |
| Electromagnetic Interference |
Meets FCC Part 15 for digital devices; meets CE requirements for radiated emissions, electrostatic discharge, & radiated susceptibility. |
| Power Source |
Internal lithium battery with life of 10 years at 1 min. sampling rate. |
System Operation
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Series 1700 Thermocouple dataloggers record low-level millivolt thermocouple signals. The system automatically processes these signals and references them to the logger's on-board cold junction temperature sensor to produce accurate temperature readings.Two types of Series 1700 dataloggers are available: The narrow range "N" series provides high precision and exceptional low-temperature performance; the wide range "W" series provides a broader temperature measurement range ideal for high temperature applications. The following two charts detail the input specifications , measurement ranges, and rated accuracies of these two series of units.
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Datalogger Inputs
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| Narrow Range |
1700-21N |
2 |
1 |
1 |
| 1700-31N |
3 |
1 |
2 |
| 1700-51N |
5 |
1 |
4 |
| Wide Range |
1700-21W |
2 |
1 |
1 |
| 1700-31W |
3 |
1 |
2 |
| 1700-51W |
5 |
1 |
4 |
Note: One channel on each model provided for Cold Junction Temperature (CJT) reference using on-board precision-tolerance thermistor.
Thermocouple Input Channels
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| Compatible thermocouple types: |
J, K, T, E, R & S |
| Input Impedance: |
10M ohms |
| 1700 Series Type: |
Input Range: |
Resolution: |
Accuracy: |
| Narrow Range |
-7.2 to
7.8 mV |
0.004 mV |
+/- 0.014 mV @ 25°C |
| Wide Range |
-4.6 to
55.4 mV |
0.016 mV |
+/- 0.055 mV @ 25°C |
Thermocouple Ranges & Accuracy
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Temperature Measurement Range
(°C) |
-220 to 210 |
-130 to 160 |
-240 to 190 |
-110 to 140 |
-50 to 790 |
-50 to 850 |
| -100 to 1370 |
-50 to 900 |
-100 to 350 |
-50 to 740 |
-50 to 1760 |
-50 to 1700 |
Instrument Temperature Accuracy
@mid range (°C) |
0.36 |
0.28 |
0.40 |
0.24 |
1.4 |
1.5 |
| 1.3 |
1.0 |
1.2 |
0.70 |
4.4 |
5.1 |
Resolution
@mid range (°C) |
0.10 |
0.08 |
0.11 |
0.07 |
0.40 |
0.43 |
| 0.37 |
0.29 |
0.34 |
0.20 |
1.3 |
1.5 |
Cold Junction Temperature Channel
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| Measurement range |
-40 to 85°C |
| Accuracy |
+/- 0.25°C at 25°C |
Connection Diagram
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Connecting thermocouple probes using an 1700-51N/51W logger:
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To connect a typical two-wire probe, attach the red lead to one of the logger's two common (COM) input terminals. Attach the other probe lead to a channel input (CH1, CH2, CH3 or CH4)
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Memory
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| Memory Type |
Non-volatile 105K x 8 EEROM; 105K optional |
| Data Sample Capacity |
70,000 12-bit samples |
| Memory Modes |
User-selectable: Wrap when memory full, or Stop when memory full. |
| Memory Protection |
Data retention > 20 years backup without power. |
| Sampling Rates |
User-selectable (in intervals of 10 seconds) from once every 10 seconds to once a day. |
| Recording Span |
Recording span depends on sample interval selected and number of channels enabled. Below chart details typical sampling rates and length of time logger will retain data in memory before wrapping around or stopping (see Memory Modes). |
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2
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3
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4
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5
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| 10 seconds |
4.1 days |
2.7 days |
2.0 days |
1.6 days |
| 30 seconds |
12.2 days |
8.1 days |
6.1 days |
4.9 days |
| 1 minute |
24.3 days |
16.2 days |
12.1 days |
9.7 days |
| 5 minutes |
4.1 months |
2.7 months |
2.0 months |
1.6 months |
| 15 minutes |
1.0 year |
8.1 months |
6.1 months |
4.9 months |
| 1 hour |
4.0 years |
2.6 years |
2.0 years |
1.6 years |
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Note: Channel count is based on the number of thermocouple inputs enabled (or available) plus one channel for cold junction temperature (CJT). |
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