YD33 Vibration Velocity Sensor / YD37 Three-Axis Accelerometer

Parameter	Specification
Measurement range	±1270 mm/s
Sensitivity at 25°C	4 mV/mm/s (±5%); unit format retained from catalog
Amplitude nonlinearity	≤ ±1%
Frequency response, as printed	5–1 kHz (±1 dB); 4–4 kHz (±3 dB)
Transverse sensitivity ratio	≤ 5%
Excitation voltage	+18 to +28 VDC, constant-current supply
Excitation current	2–10 mA
Output impedance	< 100 Ω
Full-scale output, peak	±5 V
Noise	< 50 μV
Bias voltage	+10 to +12 V
Maximum shock	2000 g
Operating temperature	−40 to +85°C
Protection	IP68
Housing	304 stainless steel
Output connection	Two-pin circular connector with 3 m cable
Default mounting thread	1/4-28 to M6×1 adapter

Parameter	Specification
Sensitivity	100 mV/g; other values customizable
Measurement range, peak	±50 g
Frequency response	0–5 kHz (±3 dB)
Amplitude nonlinearity	≤ ±1%
Transverse sensitivity ratio	≤ 5%
Excitation voltage	+18 to +28 VDC, constant-current supply
Excitation current	2–10 mA
Output impedance	< 100 Ω
Full-scale output, peak	±5 VAC
Noise	< 50 μV
Bias voltage	+10 to +12 V
Maximum shock	2000 g
Operating temperature	−40 to +85°C
Protection	IP68
Housing	304 stainless steel
Construction	Shear
Output connection	1/4-28 four-pin circular connector with 3 m cable
Mounting	M5 or adhesive

YD33 is printed as 5–1 kHz and 4–4 kHz, without separate units at the lower endpoints. The lower-end units require confirmation. YD37's 0–5 kHz response is a separate specification and must not be substituted for YD33.