User Guide

Operating Instructions αlpha-RES1000
17
7.4.5 Maximum Pulse Length (tPL) or Maximum Frequency (FPF)
Note: If the controller type “oFF” or “L.Ct” is set, the parameters listed in 7.4.4 and 7.4.5 are blanked out.
This mode lets you set the maximum pulse length or the maximum frequency at which the relay will
operate.
1) Follow directions in 7.4.1 to enter Controller mode.
2) Press the ENTER key. Scroll until the lower display shows “t.PL”
or “F.PF”.
- In PLC (pulse length) mode: The lower display shows “t.PL” to
indicate pulse length. The upper display shows your current
pulse length. You can select any value from 0.5 to 20 seconds.
- In PFC (pulse frequency) mode: The lower display shows F.PF to
indicate pulse frequency. The upper display shows your current
maximum pulse rate. You can select any value from 60 to 120
pulses per minute. When the measured value exceeds the
Proportional Band in 7.4.4, the controller will pulse the relay at
this rate.
3) Press the ∆ and ∇ keys to choose the period duration or
maximum frequency, depending on your mode.
4) Press the ENTER key to confirm your selection and to return to Advanced Set-up mode, or return
to Measurement mode by pressing the ∆ and ∇ keys simultaneously (escape).
7.5 Measurement Range sub-function
In this sub-function, appropriate range is selected with the appropriate cell constant.
7.5.1 Entering the Measuring Range sub-function
1) Enter Advanced Set-up mode. Push ENTER key and scroll to Advanced Set-up security code
“22”. Push ENTER key.
2) Press ∆ or ∇ keys to scroll until upper display shows “rng”.
7.5.2 Selecting Measuring Range sub-function
1) Follow directions in 7.5.1 to enter Controller mode and press
ENTER key.
2) Press ∆ or ∇ keys to select correct range. (Please refer to 7.5.3
for full list of measurement ranges). Note the upper display shows
maximum measurement range, while lower display shows Cell
constant. Lower left-corner of LCD displays the number
corresponding to the respective range.
3) Press ENTER key to confirm.
4) Proceed to 7.5.4 to set current output or return to Measurement
mode by pressing ∆ and ∇ keys simultaneously (escape).
rn
g
HOLD SETUP
20.00
0.01
HOLD SETUP
1
mΩ
10.0
t.PL
HOLD SETUP
60
F.PF
HOLD SETUP