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Mvt Thermocouple / Millivolt Module
Seven Millivolt modules enable the XR440 Data Logger to accept a millivolt signal on channel 3. Three modules (Mvt-11b, Mvt-22b, Mvt-50u) accept a thermocouple (Type J, K, N, R, S, T, B, C, or E). A built-in, precision thermistor on channel 1 provides ambient temperature readings and for a thermocouple, cold junction compensation. An Mvt module configures a Pocket Logger as follows: Channel 1: Ambient temperature. Channel 3: Millivolt (or thermocouple) signal. Channels 2 and 4: 'Standard' channels for any Pace sensors, or 0-5 vdc or resistive signals. The Mvt-20u, Mvt-96u, Mvt-107b and Mvt-500u do not accept a Thermocouple.
Mvt Modules - Common Specifications |
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| Operating Temperature | -40°C to 60°C (-40°F to 140°F). |
| Size: | 1.61" wide x 0.75" deep x 0.55" high (41mm x 19mm x 14mm). |
| Overall Size with XR440 Data Logger: | Adds 0.35" (9mm) to XR440's overall length, no change to XR440's height and width. |
| Thermistor Sensor: | ±0.1°C interchangeability, 0-70°C. |
| Input Type: | Single ended, (-) terminal is internally connected to dc ground. |
| Input Impedance: | Greater than 10 M ohm. |
Note: The last letter of the model number ('u' or 'b') signifies unipolar or bipolar input.
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Electrical Specifications |
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| Mvt-11b | Mvt-22b | Mvt-20u | Mvt-50u | Mvt-96u | Mvt-107b | Mvt-500u | |
| Input Voltage Range: | ±11 mV | ±22 mV | 0-20 mV | 0-50 mV | 0-96 mV | ±107 mV | 0-500 mV |
| Input Resolution (12 bit mode): | 12 uV | 24 uV | 5 uV | 12 uV | 24 uV | 120 uV | 120 uV |
| Input Offset Voltage: | 200 uV max. | 200 uV max. | 5 uV max. | 5 uV max. | 5 uV max. | 200 uV max. | 5 uV max. |
| Input Offset Voltage Drift: | 2 uV/ °C max. | 2 uV/ °C max. | 0.05 uV/ °C max. | 0.05 uV/ °C max. | 0.05 uV/ °C max. | 2 uV/ °C max. | 0.05 uV/ °C max. |
| Accepts Thermocouple | Yes | Yes | No | Yes | No | No | No |
| System Accuracy: | 0.8% of F.S. | 0.8% of F.S. | 0.4% of F.S. | 0.4% of F.S. | 0.4% of F.S. | 0.8% of F.S. | 0.4% of F.S. |
Part Numbers: (7 different models): Mvt-11b, Mvt-22b, Mvt-107b, Mvt-20u, Mvt-50u, Mvt-96u, Mvt-500u
Price: (any model): $130.
See below for Thermocouple Specifications for Mvt-11b, Mvt-22b, and Mvt-50u.
Mvt-11b Thermocouple Specifications
Type Min. Temperature Max. Temperature Approx. Resolution J -130°C (-202°F) 200°C (392°F) 0.2°C (0.4°F) K -50°C (-58°F) 270°C (518°F) 0.3°C (0.5°F) N -50°C (-58°F) 340°C (644°F) 0.3°C (0.5°F) R 0°C (32°F) 1030°C (1886°F) 0.8°C (1.4°F) S 0°C (32°F) 1120°C (2048°F) 1.0°C (1.8°F) T -200°C (-328°F) 230°C (446°F) 0.2°C (0.4°F) B 0°C (32°F) 1570°C (2858°F) 1.0°C (1.8°F) C 0°C (32°F) 620°C (1148°F) 0.6°C (1.1°F) E -100°C (-148°F) 160°C (320°F) 0.15°C (0.3°F)
Mvt-22b Thermocouple Specifications
Type Min. Temperature Max. Temperature Approx. Resolution J -130°C (-202°F) 400°C (752°F) 0.4°C (0.7°F) K -50°C (-58°F) 530°C (986°F) 0.6°C (1.1°F) N -50°C (-58°F) 630°C (1166°F) 0.6°C (1.1°F) R 0°C (32°F) 1760°C (3200°F) 1.6°C (2.9°F) S 0°C (32°F) 1760°C (3200°F) 2.0°C (3.6°F) T -200°C (-328°F) 400°C (752°F) 0.4°C (0.7°F) B 0°C (32°F) 1820°C (3308°F) 2.0°C (3.6°F) C 0°C (32°F) 1210°C (2210°F) 1.2°C (2.2°F) E -100°C (-148°F) 310°C (590°F) 0.3°C (0.5°F)
Mvt-50u Thermocouple Limitation: The Mvt-50u must be set (in Pocket Logger Software) to read either high or low temperatures. When set for high temperatures, the low temperature limit is the ambient temperature of the Mvt Module. When set for low temperatures, the high temperature limit is the ambient temperature of the Mvt Module. The Mvt-11b and Mvt-22b do not have this limitation.
Mvt-50u Thermocouple Specifications
Type Min Temp Max Temp Approx. Resolution J Ambient* 760°C (1400°F) 0.2°C (0.4°F) K Ambient* 1220°C (2228°F) 0.3°C (0.5°F) N Ambient* 1300°C (2372°F) 0.3°C (0.5°F) R Ambient* 1760°C (3200°F) 0.8°C (1.4°F) S Ambient* 1760°C (3200°F) 1.0°C (1.8°F) T Ambient* 350°C (662°F) 0.2°C (0.4°F) B Ambient* 1820°C (3308°F) 1.0°C (1.8°F) C Ambient* 2320°C (4208°F) 0.6°C (1.1°F) E Ambient* 660°C (1220°F) 0.15°C (0.3°F) J 'low' -130°C (-202°F) Ambient* 0.2°C (0.4°F) K 'low' -50°C (-58°F) Ambient* 0.3°C (0.5°F) N 'low' -50°C (-58°F) Ambient* 0.3°C (0.5°F) T 'low' -200°C (-328°F) Ambient* 0.2°C (0.4°F) E 'low' -100°C (-148°F) Ambient* 0.15°C (0.3°F) *Ambient temperature of Mvt-50u
XR440 Data Logger, Description and Pricing
Catalog and Price
List PDF: 2 MB / 15 pages 
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