Aetna Digital Tachometers
SWITCH SETTING INSTRUCTIONS
For use by Factory Authorized Personnel Only
■ Version ‘-SH’
PPR
Switch Position
PPR
Switch Position
8
1
2'
3
4
5 6
7
8
1 2
3
4 5
6
7
206
on
on off
off
on on
off
on
154
on off
off
on
on off
on
off
206
on on
off off
on
on
on
off
156
on
off
off
on on
off
on
on
207
on
on
off off
on
on
on on
156
on
off off
on
on
on
off off
206
on on
off
on
off off
oft
off
157
on off
off
on
on
on off
on
209
on on
off
on off
off
off on
1^
on off
off
on
on on
on
off
210
on
on off
on off
off
on
off
159
on off
off
on
on
on on
on
211
on
on
off on
off off
on
on
160
on off
on
off off
off
off off
212
on
on off
on off
on
off off
161
on
off
on off
off
off off
on
213
on
on
off
on off
on off
on
162
on off
on
off off
off
on off
214
on on
off
on off
on
on off
163
on
off
on off
off off
on on
215
on on
off on
off
on on
on
164
on
off
on off
off on
off
off
216
on
on
off on
on off
off
off
1Й
on
off on
off off
on
off
on
217
on
on off
on on
off
off on
166
on off
on oft
off
on
on off
218
on on
off
on on
off on
off
167
on
off on
off
off on
on
on
219
on on
off on
on
off on
on
1Ш
on
off on
off
on off
off
off
220
on
on off
on
on on
off off
1Ю
on
off on
off
on off
off on
221
on on
off
on on
on off
on
170
on off
on
off on
off
on off
222
on
on
off on
on
on on
off
171
on off
on off
on off
on
on
223
on on
off
on on
on on
on
172
on
off on
off
on on
off off
224
on
on
on off
off
off off
off
173
on off
on off
on
on off
on
226
on
on
on off off
off
off on
174
on off
on off
on on
on
off
226
on on
on
off off
off
on off
ITS
on
off on
off on
on
on
on
227
on
on
on off
off off
on
on
176
on
off on on
off
off off
off
228
on
on
on off
off on
off
off
177
on off
on on
off off
off
on
229
on on
on
off off
on ,
off on
178
on off
on on
off off
on off
230
on on
on off
off
on on
off
179
on off
on
on off
off on
on
■ 231
on
on on
off off
on
on on
180
on off
on on
off on
off
off
232
on on
on off
on
off off
off
181
on
off on
on off
on
off on
233
on
on
on off
on off
off
on
182
on
off on
on off
on on
off
234
on
on on
off
on off
on off
183
on off
on on
off
on on
on
235
on
on
on off
on
off on
on
184 on
off on
on on
off
off off '
236
on
on on
off on
on
off
off
185 on
off on
on on
off
off on
237
on on
on off
on
on off
on
186
on off
on on
on off
on off
238
on on
on
off on
on on
off
187
on
off on on
on
off on
on
239
on
on on
off on
on
on on
188
on off
on on
on on
off off
240
on
on
on on
off off
off
off
199
on
off on on
on
on off
on
241
on
on
on on
off off
off
on
190
on off
on on
on on
on
off
242
on on
on
on off
off on
off
191
on off on
on on
on on
on
243
on
on on
on
off off
on on
192
on
on off off
off off
off
off
244
on on
on
on
off on
off off
193
on on
off off
off off
off on
245 on
on
on on
off on
off
on
194
on on off
off off
off on
off
246
on
on on
on
off on
on off
195
on on
off off
off off
on on
247 on
on
on
on off
on on
on
196 on
on off
off off on
off
off
248
on
on
on on
on off
off off
197
on on
off off off
on
off on
249
on
on
on on
on off
off
on
193 on
on off
off off
on on
off
250
on
on on
on on
off
on off
199 on on
off off
off on
on on
251
on on
on on
on
off on
on
200
on on
off off on
off off
off
252
on on
on
on
on on
off
off
201
on
on off off on
off
off on
253
on
on
on on
on on
off
on
202
on on
off off on
off on
off
254
on
on on
on on
on
on
off
203
on on off
off on off
on
on
255
on on
on on
on on .
on
on
204 on
on off
off on on
off off
Procedure: Position the switches according to the table using a thin stylus such as the metal
filler from a ball point pen. Care should be taken to use only moderate pressure in actuating the
individual switches to avoid damaging them. Use of pienty of light and magnification can be
helpfui. Switch #1 is on the left, #8 on the right; up is on and down is off.
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