Atec Espec-SH-641 - Manual (Page 7)

6
Program function
Step program
Temperature
gradient program
Termination
program
Pattern
*1 Sets a program repetition frequency between a range of 1 and 99.
*2 Selects HOLD, CONST or OFF when a program is over.
Temp.
Time
Temp.
Temp.
Time
Time Time Time
*1,2
*1,2
1.HOLD 2.CONST 3.OFF
END
END END
Retains value
of last step
Operation at
constant temp. Chamber
OFF
2
4
1
3
6
5
8
7
9
2 4
1
3
6
5
8
7
9
Control operation
Key input setting
E a s y se t t i ng of t e mp e r at u r e a nd
humidity values, but also upper and
lower temperature (& humidity) limit
alarms, by mechanical key input.
Program operation up to 9 steps
Besides constant setting, program
op e r at ion is avai lable by set t i ng
different patterns (9 step/ pattern) of
heat up and pull down temperatures, to
meet requirements of temperat ure
characteristic test or temperature (&
humidity) cycling. The instrumentation
additionally offers various functions.
Flexible communication interface
An RS-485 connector is equipped as
standard, but RS-232C or GP-IB is also
available as option.
Remote control from your PC
Using "WEB Manager" (converter sold
separately) and an intranet to connect
the chamber and a computer makes it
possible to edit profiles and perform
monitoring from the computer.
Temperature (& humidity) program indicator controller
Description of program function
Setting Mechanical key input
Display 7 segment LED display
Operating mode Program operation, constant operation
Control PID control
Setting and indication
Temp. : 0.1ºC
Humid. : 1%rh (SH only)
Time :
1 minute
Setting and
indication ranges
Temp. : −25 to ＋155ºC (SH-221, SU-221)
−45 to ＋155ºC (SH-241/641, SU-241/641)
−65 to ＋155ºC (SH-261/661, SU-261/661)
Humid. : 0 to 100%rh (SH only)
Time
: 0 to 99 hours 59 minutes, 100 to 999 hours
Indication accuracy *
Temp. : 0.5ºC (Typ.)
Humid. : ±2%rh (Typ.) (SH only)
Time
: within 30 sec. per month
Program memory capacity 9 steps per pattern (1 to 99 times)
Interface RS-485
Auxiliary functions
Input-burnout detection
Upper and lower temp. (& humid.) limit alarm
Self-diagnostic (watchdog timer)
Alarm indication
Power cut protection
Refrigerator capacity automatic control
Battery Lithium battery ×1
* At ambient temperature ＋23ºC
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