EHC-C www.easthigh.com.cn 1
1. INTRODUCTION
1.1 General and Safety Information
For use in dry environments only.
This product uses aAcid battery. Dispose of according to local laws and regulations.
Read and understand all operating instructions before using this product.Keep this manual for future
reference.
Allow sufficient warm up time. Turn the scale on and allow up to 10 minutes for internal components to
stabilize before weighing.
Record the weight shortly after placing a load on the platter. Leaving loads in place for extended periods may
vary the load cell’s output signature and may result in a less accurate reading.
Avoid extended exposure to extreme heat or cold. Optimum operation is at normal room temperature. See
operating temperature range in the specifications table. Allow the scale to acclimate to room temperature
before using.
When storing the scale for extended periods, the battery must be charged every 90 days to avoid premature
performance degradation. Over time, the operating time per charge will degrade. If the operating time is no
longer acceptable even after recharging, the battery must be replaced.
Electronic scales are precision instruments. Do not operate near cell phones, radios, computers or other
electronic devices that emit radio frequencies that may cause unstable readings.
1.2 Specifications
Model
12R982B
EHC-C-3
12R983B
EHC-C-6
12R984B
EHC-C-15
12R985B
EHC-C-30
Max. Capacity
6 lb (3 kg) 12 lb (6 kg) 30 lb (15 kg) 60 lb (30 kg)
Readability
0.0002 lb (0.1 g) 0.0005 lb (0.2 g) 0.001 lb (0.5 g) 0.002 lb (1 g)
Display Resolution 1:30000 1:30000 1:30000 1:30000
Min. Recommended Weight 0.004 lb (2 g) 0.01 lb (4 g) 0.02 lb (10 g) 0.04 lb (20 g)
Min. Piece Weight 0.000022 lb (0.01g)
0.00005 lb (0.02g) 0.00011 lb (0.05g) 0.00022 lb (0.1g)
Weighing Units kg / lb
Calibration Unit kg / lb
Modes weighing, counting, accumulation, data compare
Weight Display Three 7-segment LED display windows, 0.56” high, 6-digit
Memory 256 entries
Zero Range
Power-on zero range: calibration zero point±15%FS;
ZERO key range: power-on zero±5%FS
Tare Range Full capacity
Stabilization Time <5 seconds
Operating Temperature 32° to 105°F (0° to 40°C)
Humidity Range <90% relative humidity, non-condensing
Power Supply 6V 4.0Ah Acid battery or AC power adapter (12Vdc/500mA with central positive)
Battery Performance Up to12 hours when fully charged
External Interface RS232
Safe Overload Capacity 150% of capacity
Platter Dimensions (L x W) 11.4” x 8.7” (290 x 220 mm)
Scale Dimensions(L x W x H)
13.5” x 11.6” x 4.5” (294 x 342 x 115 mm)
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