AUBER INSTRUMENTS
WWW.AUBERINS.COM
2018.02 P1/3
JSL-72 Timer for Coffee Grinder
Version 2.1 (Feb, 2018)
1.
Overview
This JSL-72 timer is specifically designed for controlling coffee grinder. It can
count from 0.01" to 99.99" or from 1" to 99'59". Counting direction can be set
by user (counting up or counting down). Accumulated time/ cups can be
automatically stored in the timer and reset by user. Operating function modes
include single dose, double dose and manual. Most function features can be
activated by front key pad or remote switch. However, manual function can
only be accessed through remote switch. Three different display modes can be
programmed. User can shift among single/double dose display mode, total
running time display mode, and total number of cups display mode. Timer
adjust function can be deactivated to prevent any accidental change.
2. Specification
Timer range: 0.01" to 99.99", or 1" to 99'59".
Timer mode: single dose, double dose, or manual.
Timer trigger: power on, front key pad, or remote switch.
Timer accuracy: < 1 s/day.
Power supply: 90 - 260 V AC or DC.
Power consumption: < 2 W.
Relay output: 7 A @ 240 VAC, 10 A @ 120 VAC and 24 VDC.
Relay life: 100,000 times.
Operating temperature: 0 - 60° C.
Humidity: 0 - 95% RH.
Panel cutout: 44.5 x 44.5 mm.
Outer dimension: 48 x 48 x 85 mm.
3.
Front
Panel
1
2
3
4
5
6
7
8
Figure1. Front panel
1
. Time range indicators: M for minutes. It will be illuminated when time base is
MM:SS (Minutes: Seconds). It will be off when time base is SS.SS (Seconds).
2. Timer indicators: T1 is illuminated for single dose; T2 is illuminated for
double dose.
3. OUT indicator: illuminated when relay is on; turns off when relay is off.
4. SET key. When timer is not running, in single/double dose display mode,
press it will shift between single dose time (T1) and double dose time (T2) (see
section 5.1 for details); press and hold it for 3 seconds will shift between
single/double dose display mode and total running time/cups display mode
(see section 5.1 for details); press and hold it for 5 seconds will enter the
parameter programming menu (see section 5.2 for details).
5. Down key: When timer is not running, in single/double dose display mode,
press it will lower the time setting value; in total running time/cups display
mode, hold it for 4 seconds will reset the value.
When timer is running, in either display mode, press it will stop the timer. In
programming mode, press it will go to the next programming value.
6. Up key: When timer is not running, in single/double dose display mode,
press it will increase the time setting value. When timer is running, press it will
stop the timer. In programming mode, press it will go to the previous
programming value.
7. RST key: Reset key. When timer is not running, press it will activate the
timer. When timer is running, press it will stop the timer.
8. LED digital display. In single/double dose display mode, the top displays the
actual time; the bottom displays the set value. In total running time/cups modes,
the top displays the accumulated running time/cups; the bottom displays
tot/CuPS. In programming mode, the top displays setting parameters; the
bottom displays programming value.
4. Terminal Assignment
6
7
8
9
10
1
2
3
4
5
NC
O
UT
NO
AC
90
~2
60
V
T1
T2
M
AN
R
SV
C
OM
Figure 2. Terminal assignment
Terminal functions when timer is running
1. Terminal abbreviations: MAN (manual), T2 (double dose time), T1 (single
dose time), COM (common), RSV (reserved).
2. Connecting MAN and COM: timer starts running when they are connected.
3. Connecting T2 and COM: Timer starts running for T2 when they are
disconnected.
4. Connecting T1 and COM: Timer starts running for T1 when they are
disconnected.
5. Terminal 6, 7 and 8 are relay outputs. Terminal 6 & 7 are normally closed
(NC), terminal 7 & 8 are normally open (NO). When output relay is deactivated,
terminal 6 & 7are jumped and terminal 7& 8 are isolated. When output relay is
activated, terminal 6 & 7are isolated and terminal 7& 8 are jumped.
6. Terminal 2 (RSV) is reserved for customized applications.
5. Programming
When timer is not running, press SET key for 5 seconds to enter the
programming menu. For each parameter setting, use up/down key to select
different programming values. Press SET key to confirm and move on to next
Instruction Manual
