YD9820 Two-Wire Shaft Vibration Transmitter

Parameter	Specification
Resolution	0.05% FS
Frequency response, as printed	4–4 kHz (±3 dB); lower-end unit not stated separately
Linearity error	≤ 1% FSO
Temperature drift	≤ 0.05%/°C
Operating temperature	−50 to +175°C
Supply	12–35 VDC
Installation gap voltage	5–7 VDC
Raw signal	1–11 V
Buffered output	1–5 VDC
Output ripple	≤ 20 mV
Maximum operating current	≤ 50 mA
Maximum load, as printed	≤ 750Q; unit unconfirmed
Output impedance	100 kΩ
External probe	5 mm or 8 mm
Protection	IP67

YD9820-A□□-B□□-C□□-D□□-E□□-F□□-G□□-H□□

Parameter	Specification
A — Probe diameter	01: φ5; 02: φ8
B — Peak-to-peak range	01: 0–100 um; 02: 0–200 μm; …; 10: 0–1000 μm
C — Frequency response	01: standard; 02: low frequency
D — Thread	01: M8×1; 02: M10×1; 03: M14×1.5; 04: custom
E — Unthreaded length	00: 00 mm; 10: 10 mm; 20: 20 mm; …; 100: 100 mm
F — Overall housing length	20: 20 mm; 50: 50 mm; …; 250: 250 mm
G — Probe cable + extension cable	01: 3 + 0 m; 02: 1 + 4 m; 03: 3 + 6 m
H — Armor	00: armored; 01: unarmored

Only the printed codes are listed. An ellipsis in the catalog does not establish the omitted intermediate ordering codes.

The frequency response is printed as 4–4 kHz (±3 dB). A separate unit is missing at the lower endpoint; 4 Hz is not a confirmed specification. Confirm the lower-end unit for the ordered frequency-response option.

The maximum-load entry is printed as ≤ 750Q. The catalog does not confirm that Q means Ω; obtain a confirmed load unit before circuit design.