世界一流记录仪，能纪录高达140Hz信号，0.2%进纸误差。

Specifications (Main unit)
Model	WR3320A				WR3320A
	-2H	-4H	-6H	-8H	-1DH	-2DH	-3DH	-4DH
No. of Cannel	2	4	6	8	1	2	3	4
Pen motor	GS3310				GW3310
Amplitude	±20mm				±40mm
Recording method	Heat-sensitive paper (Black) and thermal pen
Circuit form	DC Servo
Accuracy	Within ±0.5% of full scale (including non-linearity and dead-band)
Frequency response (1Hz reference)	10mmP-P : 0 to 140Hz (+5·-10%) 20mmP-P : 0 to 100Hz (+5·-10%) 40mmP-P : 0 to 60Hz (+5·-10%)				20mmP-P : 0 to 60Hz (+5·-10%) 40mmP-P : 0 to 45Hz (+5·-10%) 80mmP-P : 0 to 30Hz (+5·-10%)
Reference voltage	1V (Accuracy ±0.2%)
Paper feed speed	5, 10, 25, 50, 100, 250 and 500mm/sec or mm/min 0.5, 1, 2.5, 5, 10, 25 and 50mm/sec or mm/min <Accuracy: ±0.2% ±0.5mm>
	External synchronization feed (50mm/sec max) *Switching of pulse input or voltage input control				<Accuracy> Pulse input control : ±0.2% ±0.5mm Voltage input control : ±2.0% ±0.5mm
Time marker	One mark every 1 or 10s or 1 or 10min (Accuracy: ±0.1%), and remote control by external contact closure or TTL signal (Time marker mode or Event marker mode)
Event marker	Push-button operation, or external control (contact closure or TTL signal)						-
Remote paper feed	Remote paper feed External contact closure or TTL signal
Remote paper harter	Remote paper feed External contact closure or TTL signal
Paper rewind	50mm/sec (Roll paper only)			-
Annotation printing (optional: A-380)	Internal printing : Date, time (elapsed or real), and chart speed External printing : Alphanumeric, symbols by ASCII codes input from external devices
Power requirement	AC 100·117·220·240V ±10%, 50/60Hz				-
Power consumption * H: 10mm p-p 140Hz DH: 20mm p-p 60Hz Paper feed speed: 500mm/sec	250VA	340VA	450VA	560VA	155VA	190VA	240VA	300VA
Dimensions (mm) (Tolerance:±3mm)	W : 430 x H : 187 common
	199 (D)	289 (D)	379 (D)	450 (D)	199 (D)	289 (D)	379 (D)	450 (D)
Weight (approx.) *	13kg	17kg	25kg	26kg	12kg	15kg	22kg	22kg
Operating environment	0 to 45℃, 30 to 85% RH

* Power consumption and weight include pre-amplifiers.

Specifications (Pre-amplifier)
Model	AH3301A	AH3302A
Maximum sensitivity	1mV/cm	0.5mV/cm
Masurement range (Switching accuracy)	1, 2, 5, 10, 20, 50, 100, 200, 500mV/cm 1, 2, 5, 10, 20, 50, 100, 200, 500V/cm	0.5, 1, 2.5, 5, 10, 25, 50, 100, 250mV/cm 0.5, 1, 2.5, 5, 10, 25, 50, 100, 250V/cm
	±1% (with respect to 500mV/cm range)	±1% (with respect to 250mV/cm range)
Input resistance	1MΩ (fixed)
Maximum input voltage	DC 500V (including common mode voltage)
Sensitivity adjustment	Settable anywhere within full measurement range
Calibration voltage	Measurement range x 2 (20mm)	Measurement range x 4 (40mm)
Zero position	Settable anywhere within full scale
CMRR	AC : 120dB
Input filter	Built-in (50Hz/60Hz/OFF, switchable)
Compatible Pen motor	GS3310	GW3310