YB21 Strain Gauge Signal Indicator with Dual OC Alarm Output, Contact Input, Industrial Measurement IEC61000 EMC, -30~60°C,

Technicalparameters
anti-interference
IEC61000-4-2(ElectrostaticDischarge),Class III
EC61000-4-4(ElectricalFastTransientPulseGroup)Class III
EC61000-4-5(Surge),Class III
Built-in battery
IEC61000-4-2(ElectrostaticDischarge),ClassIII
EC61000-4-4(ElectricalFastTransientPulseGroup),ClassIII
EC61000-4-5(Surge),ClassIII
Class of protection
IP65 (Product Front Panel Protection)(GB/T42-2008)
Ambient temperature
-30~60℃(Storage.-40-65°C)
Ambient humidity
35~85% R.H, no condensation
Installation position
Indoor, height < 2000m
input signal
Proportional measurement, with 4-wire strain sensor -14~14mV
Measurement and
control speed
15,120,240,480,%0,1920times/second
(throughparameterSettings)
nonlinearity
+0.01%F'S (measurement speed 15 times/second)
Gain drift
<10ppm/℃(Whenconnectingthesensor,
usethematchingtemminalconnector.
otherwiseitwilldeteroratethetemperaturedriftcharacteristics)
Maximum display
accuracy
1/100.000
Contact input
1pointextemalswitchinginput,canbeusedtoclear.peel,
allowalam,displaylock.clearpeak
andvalleyvalue.capturefunction(canbeselectedbyparameters)
Dl/DO External
power supply voltage
Between PD+ and PD-:+9-+30V
Sensor power supply
DC 5V+2%, 100mA (MAX)
Alarm output
2 OC gate output, ≤35mA
High Resolution – Up to 1/100,000 display accuracy for precise force/weight measurement
Fast Sampling – Selectable 15 / 120 / 240 / 480 / 960 / 1920 samples per second
4‑Wire Strain Input – Compatible with ±14 mV strain‑gauge load cells, typical 350 Ω bridge
Stable & Accurate – ±0.01%FS nonlinearity (at 15 SPS), <10 ppm/°C gain drift
Industrial Protection – IP65 front panel, IEC61000‑4‑2/‑4/‑5 EMC immunity, Class III
I/O & Alarms – 1x DI, 2x OC outputs ≤35 mA for alarms or external control
Sensor Excitation – 5 V ±2%, 100 mA output for powering load cells
Wide Power Options – External +9~+30 V supply, works in ‑30~60°C environments
PC Data (Optional) – Supports computer readout via separately sold USB/RS232 adapter
Portable Use – Handheld with sleep/normal modes; ideal for lab, QA, packaging, on‑site testing