Digital Strain Recorder RMH-310A
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@santatech
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santatech@gmail.com
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02-1013454
Description
The RMH-310A is a battery-operated digital strain recorder featuring low power consumption.
Thus, it is suitable for unattended long-term measurement in remote places, mountainous regions and heavy snowfall districts where no power supply is available.
Channels
10
Applicable Transducers
Strain-gage civil engineering transducers
Civil engineering transducer with a thermal sensor
Strain-gage transducers
Thermocouples (Types K and T)
Compatible Bridge Resistance
350 Ω (Full-bridge system)
Cable Length
Max. 2.0 km
(4-conductor (0.5 mm2) shielded cable)
Gage Factor
2.00 fixed
Bridge Current
Approx. 2.19 mA DC (Constant current)
Measuring Range
[Strain]
±20000 ×10-6 strain
[Temperature (Civil engineering transducer with a thermal sensor)]
-30.0 to 70.0°C
[Temperature (Thermocouple)]
K: -200 to 1200 °C
T: -200 to 350°C
Resolution
[Strain]
1 ×10-6 strain
[Temperature (Civil engineering transducer with a thermal sensor)]
0.1°C
[Temperature (Thermocouple)]
0.1°C
Accuracy
[Strain]
±0.1% FS
[Temperature (Civil engineering transducer with a thermal sensor)]
±0.5°C
[Temperature (Thermocouple)] (Reference value)
±(0.1% of reading +1.0)°C
[Internal point-of-contact compensator]
Within ±2.0°C
(At the time of an input terminal temperature balance)
Note:
The accuracy of an internal reference point-of-contact compensator and accuracy of a thermocouple are not included in measurement accuracy.
Temperature Stability
[Strain]
Zero point: Within ±1 ×10-6 strain/°C
Sensitivity: Within ±0.02%/°C
[Temperature (Civil engineering transducer with a thermal sensor)]
Zero point: Within ±0.025%FS/°C
Sensitivity: Within ±0.04%/°C
[Temperature (Thermocouple)]
Zero point: Within ±0.025%FS/°C
Sensitivity: Within ±0.04%/°C
Measuring Time
Within 40 s/10 channels (Scanning)
Temperature Measurement Current
0.24 mA DC (Constant current)
Data Storage
32000 times/channel
Clock
Year (2 digits of the Gregorian calendar), month, date, hour, and minute
Measuring Interval
1 to 59 minutes (1 minute/step)
1 to 99 hours (1 hour/step)
Check Functions
Sensor check (Parallel resistance method and during strain measurement)
Battery voltage
Memory check
Display
LCD (20 digits × 4 lines, with no back light)
Display Functions
The contents of the data below are displayed on LCD.
Measurement state
Current time
Data acquisition
Real-time monitor
Measurement start
Measurement stop
Condition setting
Self-check
Date setting
Backup data collection
Version display
Operation
Arrow keys
ON/OFF
SET
ESC
Interface
USB 2.0 (Only saved in USB memory)
Power Supply
6 to 15 VDC, optional battery pack
Current Consumption
During operation: 100 mA or less
Standby status: 100 μA at 6 VDC
Input Specifications
M3 terminals for both solder and screw
Number of Measurement Times
7000 times or more
(When measuring at intervals of 10 minutes at 23ºC using the optional RB-10A battery pack [10 Ah])
Operating Temperature
-20 to 50ºC
(Varies depending on the operating temperature range when using USB memory)
Operating Humidity
10 to 95%
Operating Environment
Dust or the inductive noise of a bulk motor must not be present.
Dimensions
170 W × 230 H × 60 D mm (Excluding protrusions)
Weight
2 kg or less (Excluding the battery)
Others
Lightning surge protector provided (SD4-75)
Standard Accessories
Battery cable (For battery pack other than RB-10A)
USB memory for collection data
(Industrial temperature range extended model)
*Auxiliary tool, instruction manual, specifications, outside drawings are saved in the provided USB memory.
Menu sheet
Optional Accessories
Battery pack RB-5A (5Ah)
Battery pack RB-10A (10Ah)
SANTA TECHNOLOGY CO.,LTD. (Head Office)
35/218 Moo. 2, Leabkhlongsam Rd., Khlongsam, Khlongluang, Pathumthani 12120
Call 02-101-3454 ,089-006-2766
Fax 02-101-3453
Mail. santatech@gmail.com
Line : @santatech
Web : https://santatechnology.com/
