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for more product details, please call us：0731-84930888
td1850 multi-product calibrator 校准万用表及其他交直流电测仪表的理想仪器
交直流电量输出：电压最大 1100 v，电流最大 22 a 或 33 a ，f：dc，45 hz ～ 1100 hz
直流电阻模拟：10 ω ～ 220 mω，连续可调；脉冲输出频率范围：1 hz ～ 2 mhz
量值输出模式：具有标准源和调节输出源二种模式
overview
model td1850, 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 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 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 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 characteristics
● output range of voltage: 20 mv to 1100 v
● resolution: 0.002 % of range
● display: 6 digits
● frequency range: 45.0000 hz to 1100.00 hz with an optimal accuracy of ±0.01 hz.
● distortion: <0.5 % (<1.0 @ 200 mv range)
● protection: short-circuit protection, overload protection.
dc current
output characteristics
● output range of current: 0.2 ma to 22 a or 33 a
● resolution: 0.002 % of range
● display: 6 digits
● frequency range: 45.0000 hz to 1100.00 hz with an optimal accuracy of ±0.01 hz.
● distortion: <0.5 %
● 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
● 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
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: 0 °c to +40 °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: 18 kg
● communication: rs-232 interface
selection guide
