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for more product details, please call us：0731-84930888
td1855 multi-product calibrator 校准数字式和指针式万用表及交直流电测仪表等的理想仪器
电量输出： 电压最大达 1100 v，电流最大达 22 a 或 33 a
频率范围：dc，45 hz ～ 1100 hz
直流功率、交流功率检测
overview
model td1855, a wide-range, multi-value and high-precision calibrator with a built-in ac and dc standard source. the apparatus accurately outputs ac voltage/current and dc voltage/current with an accuracy of class 0.05, and also has the functions of phase adjustment, ac/dc power output, resistance simulation and pulse output. applied to calibrate multimeters or other electrical measuring instruments.
this calibrator complies with the following standards:
● jjg 124-2005 verification regulation of amperemeters, voltmeters, wattmeters and ohmmeters.
● jjf 1587-2016 calibration specification for multimeters
● jjf 1284-2011 calibration specification of calibrators for electrical meters
applications
features
● electrical parameters output: voltage is up to 1100 v, current is up to 22 a or 33 a at a frequency from 45 hz to 1100 hz.
● resistance simulation: continuously variable range is from 10 ω to 220 mω, pulse output range is from 1 hz to 2 mhz.
● value output mode: standard source and output source modes, easy to calibrate both digital meters and analogue meters.
● value adjustment method: fixed-point, rotary encoder, step and potentiometer (option).
● output switch: the output can be turned on/off arbitrarily by one-touch operation.
● excellent human-computer interaction: large lcd touch screen display, touch and button operation modes, easy for users to measure manually.
● clamp coil (option): match a 50 t clamp coil produces a maximum 1100 at equivalent current to calibrate clamp ammeters.
● transmitter measurement (option): measure the secondary dc signal of the transmitters.
● proprietary software (option): support the calibration of the checked meters by semi-automatic or full-automatic, data management and report export.
electrical specifications
dc voltage output
output characteristics
● output range of voltage: 20 mv to 1100 v
● resolution: 0.002 % of range
● display: 6 digits
● ripple coefficient: <0.5 %
● protection: short-circuit protection, overload protection.
dc current output
output characteristics
● output range of current: 2 μa to 22 a or 33 a
● resolution: 0.002 % of range
● display: 6 digits
● ripple coefficient: <0.5 %
● protection: open-circuit protection, overload protection.
ac voltage output
output characteristics
● output range of voltage: 20 mv to 1100 v
● resolution: 0.002 % of range
● display: 6 digits
● distortion: <0.5 % (<1.0 @ 200 mv range)
● protection: short-circuit protection, overload protection.
ac current output
output characteristics
● output range of current: 0.2 ma to 22 a or 33 a
● resolution: 0.002 % of range
● display: 6 digits
● distortion: <0.5 % (<1.0 @ 200 mv range)
● protection: open-circuit protection, overload protection.
resistance
output characteristics
● output range of resistance: 10 ω to 220mω
● resolution: 0.002 % of range
● display: 6 digits
pulse output
● frequency range: 1 hz to 2 mhz
● resolution: 0.001 % of range
● display: 6 digits
● accuracy: ± (0.002 % of reading + 20 μhz)
● ttl level, jitter: <20 ns
power output
frequency and phase (option)
dc small signal measurement (option)
● range: 1 v, 10 v, 2 ma and 20 ma
● measuring range: ± (0 to 12 v)；± (0 to 24 ma)
● accuracy: ± (0.006 % of reading + 0.004 % of range)
● notes: applied to measure the secondary dc signal of the transmitters.
general specifications
● line power: 220 v ±22 v, 50 hz ±2 hz
● operating environment: +18 °c to +28 °c, 20 % to 85 % r·h, non-condensing
● storage environment: -20 °c to +70 °c, <85 % r·h, non-condensing
● dimensions (w × h × d): 480 mm × 215 mm × 410 mm
● weight: 19.5 kg
● communication: rs-232 interface
selection guide
