Model

SZ902/SZ901

Load measurement range

0~150kN

Load measurement accuracy

±0.5% F.S

Displacement measurement range

1~6m

Displacement measurement accuracy

±1%F.S

Frequency of stroke  measurement Range

2~6 times /min

Frequency of stroke measurement Accuracy

±1% F.S

Service life

20 million times within 20 ~ 80% of measuring range

Wireless standard

IEEE 802.15.4-2006@250kbps

Frequency

2.4GHz

Antenna form

Built-in antenna cap

Transmission distance

≥ 90m

Working power

2W solar cell + 3.6V high performance lithium rechargeable battery

Or 3.6V high-performance lithium battery

Battery replacement period

2 Years（collected once every hour）

Equipment calibration period

12 months（advice）

Installation method

Horseshoe-shaped installation fixed on rope hanger of the wellhead of pumping unit

Working environment

Tem -40℃~+70℃，Humidity 5%RH~95%RH, no condensation

Explosive-proof grade

Exib Ⅱ CT4