- Over voltage Protection (OVP)
- Over current Protection (OCP)
- Over voltage Prevention can be
set at range from 1 V to full scale as desired observing the
front output voltmeter. The output is turned off by SCR,
simultaneously input power is also turned off. Over current
prevention can be set at the range from 0 (Zero) to full scale
as desired. Over voltage/ over current can be set by PRESET
switch in a state of no load and no output voltage. Response
time is 50 µsec (typical).
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- Over temperature Protection (OTP)
- When the temperature of
transformer and semiconductor becomes in a state of
abnormality due to stoppage of cooling fan, malfunction of
power supply etc., the input power is turned off. Detectable
temperature:
- 100° C for transistor and
heatsink
- 130° C for transformer
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- Highly accurate programming
for output voltage and current by external voltage
- Remote programming capability is
provided with accuracy of approximately 0.1 % by external
voltage since OP AMP precisely adjusts circuit.
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- Input cut off by CV/ CC
monitor and external signal
- Input power can be cut off by
the following
- signals (Option):
- 1. Contact signal at CV/ CC
operation
- 2. Voltage signal of output
current monitor
- 3. External signal
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- Specifications
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- Constant voltage regulation
(CV): less than 0.005 % + 3 mV (Against all fluctuations
of the input or the load)
Constant current regulation
(CC): less than 0.05 % + 10 mA of the maximum operating
current value
Constant voltage ripple:
less than 1 mV r.m.s, less than 3 mV r.m.s (Output over 250 V)
Constant current ripple:
(Maximum operating current value + 10)/ ZmA "Z"
denotes load impedance at 50 Hz
Protection: automatic VC
limiter
Output polarity: positive
(+) or negative () can be grounded at your choice
- Ambient temperature: + 40°
C
- Indicator: DC voltmeter,
DC ammeter Class 2.5
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GP-IB Specification
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Electrical:
Mechanical:
Functional:
Code:
Address setting: |
Based
on IEEE Std. 488 - 1978
Based on IEEE Std. 488 - 1978
AH1, L1, SH1, T6, SR1, 0 for others
ISO - Code
can be set as desired between 1 and 30
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The GP-IB Programmer
allows programmed control of power supplies, electronic loads and
other devices on a GP-IB bus (IEEE 488 Std.).
The AP-1228 T, AP-1628 T and AP-1230 T have three
mutually-isolated analog output channels allowing to control
mutually-independently the voltage and current of a power supply
or of up to three power supplies simultaneously.
The GP-IB
Programmer has a talker function and can send contact signals and
digital signals on to the GP-IB bus line. The GP-IB Programmer has
peripheral I/O, which allows to accept readily the digital data
from the GP-IB bus or to send data signals (8.bit TTL signals)
onto the GP_IB bus.
The GP-IB Programmer can generate a service request. |
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